TermCymru

Results are displayed in Welsh alphabetical order A-Y
Welsh: ymosod cyffredin
English: common assault
Status A
Subject: Law
Part of speech: Verb
Definition: An offence of Common Assault is committed when a person either assaults another person or commits a battery.
Notes: Gall y ffurf enwol 'ymosodiad cyffredin' fod yn addas mewn rhai cyd-destunau.
Last updated: 13 December 2017
Welsh: ymosod di-drais
English: passive attack
Status B
Subject: Justice and order
Part of speech: Verb
Last updated: 30 August 2012
Welsh: ymosod drwy guro - curfa
English: assault by beating - battery
Status B
Subject: Justice and order
Part of speech: Verb
Last updated: 2 August 2012
Welsh: ymosodedd
English: aggression
Status A
Subject: Justice and order
Part of speech: Noun, Masculine, Singular
Notes: Mewn rhai cyd-destunau lle nad yw'n addas defnyddio'r term technegol hwn, gallai 'ymddygiad ymosodol' fod yn fwy priodol.
Last updated: 13 December 2017
Welsh: ymosodedd at gydberthynas ag eraill
English: relational aggression
Status B
Subject: Education
Part of speech: Noun, Masculine, Singular
Definition: Bwlio sy'n ceisio gwneud niwed i gydberthynas y targed ag eraill neu i'w statws cymdeithasol, ee drwy annog ffrindiau rhywun i droi cefn arno, camfanteisio ar anghenion dysgu ychwanegol neu salwch rhywun, targedu statws cymdeithasol neu ariannol ei deulu, ynysu rhywun neu godi cywilydd arno neu achosi helynt yn fwriadol i rywun.
Last updated: 2 July 2025
Welsh: ymosod gan achosi anaf
English: assault with injury
Status B
Subject: Law
Part of speech: Verb
Notes: Teitl ar drosedd
Last updated: 27 November 2025
Welsh: ymosod gan achosi anaf ar gwnstabl
English: assault with injury on a constable
Status B
Subject: Law
Part of speech: Verb
Notes: Teitl ar drosedd
Last updated: 27 November 2025
Welsh: ymosod gan achosi anaf ar weithiwr argyfwng (ac eithrio cwnstabl)
English: assault with injury on an emergency worker (other than constable)
Status B
Subject: Law
Part of speech: Verb
Notes: Teitl ar drosedd
Last updated: 27 November 2025
Welsh: ymosod gan achosi anaf, wedi'i waethygu gan hiliaeth neu grefydd
English: racially or religiously aggravated assault with injury
Status B
Subject: Law
Part of speech: Verb
Notes: Teitl ar drosedd
Last updated: 27 November 2025
Welsh: ymosod gyda'r bwriad o achosi niwed difrifol
English: assault with intent to cause serious harm
Status B
Subject: Law
Part of speech: Verb
Notes: Teitl ar drosedd
Last updated: 27 November 2025
Welsh: ymosod heb achosi anaf
English: assault without injury
Status B
Subject: Law
Part of speech: Verb
Notes: Teitl ar drosedd
Last updated: 27 November 2025
Welsh: ymosod heb achosi anaf ar gwnstabl
English: assault without injury on a constable
Status B
Subject: Law
Part of speech: Verb
Notes: Teitl ar drosedd
Last updated: 27 November 2025
Welsh: ymosod heb achosi anaf, wedi'i waethygu gan hiliaeth neu grefydd
English: racially or religiously aggravated assault without injury
Status B
Subject: Law
Part of speech: Verb
Notes: Teitl ar drosedd
Last updated: 27 November 2025
Welsh: ymosodiad
English: assault
Status B
Subject: Justice and order
Part of speech: Noun, Masculine, Singular
Last updated: 2 August 2012
Welsh: Ymosodiad Arfog Difaol gan Derfysgwyr
English: Marauding Terrorist Firearms Attack
Status B
Subject: Justice and order
Part of speech: Noun, Masculine, Singular
Plural: Ymosodiadau Arfog Difaol gan Derfysgwyr
Definition: A Marauding Terrorist Firearms Attack, which refers to a terrorist attack involving the use of firearms in a way designed to inflict large numbers of casualties. This type of incident may typically involve (in addition to the direct impact of firearms) a combination of explosions and deliberately caused fires resulting in a variable number of casualties and fatalities at simultaneous locations.
Notes: Defnyddir yr acronym MFTA yn y ddwy iaith
Last updated: 11 May 2017
Welsh: ymosodiad atal gwasanaeth
English: DoS
Status B
Subject: ICT
Part of speech: Noun, Masculine, Singular
Definition: Denial of service attack. An intentional overload of requests to a Web site or online service aimed at crashing the target's system.
Last updated: 18 February 2009
Welsh: ymosodiad atal gwasanaeth
English: denial of service attack
Status B
Subject: ICT
Part of speech: Noun, Feminine, Singular
Last updated: 14 May 2012
Welsh: ymosodiad Atal Gwasanaeth Gwasgaredig
English: Distributed Denial of Service attack
Status B
Subject: ICT
Part of speech: Noun, Masculine, Singular
Plural: ymosodiadau atal gwasanaeth gwasgaredig
Definition: Math o ymosodiad seiber lle caiff gwasanaeth ar-lein ei orlwytho gan nifer fawr o geisiadau ar yr un pryd, gan ei gwneud yn amhosibl i ddefnyddwyr cyfreithlon gael mynediad.
Notes: Mae'r ffurf fer DDoS attack yn gyffredin yn Saesneg.
Last updated: 13 November 2025
Welsh: ymosodiad Atal Gwasanaeth Gwasgaredig
English: DDoS attack
Status B
Subject: ICT
Part of speech: Noun, Masculine, Singular
Plural: ymosodiadau atal gwasanaeth gwasgaredig
Definition: Math o ymosodiad seiber lle caiff gwasanaeth ar-lein ei orlwytho gan nifer fawr o geisiadau ar yr un pryd, gan ei gwneud yn amhosibl i ddefnyddwyr cyfreithlon gael mynediad.
Notes: Dyma’r ffurf fer ar y term Saesneg ‘Distributed Denial of Service attack’.
Last updated: 13 November 2025
Welsh: ymosodiadau meddalwedd
English: software attacks
Status C
Subject: ICT
Part of speech: Noun, Plural
Last updated: 1 June 2009
Welsh: ymosodiad cyffredin
English: common assault
Status B
Subject: Justice and order
Part of speech: Noun, Masculine, Singular
Last updated: 6 August 2012
Welsh: ymosodiad di-drais
English: passive attack
Status B
Subject: Justice and order
Part of speech: Noun, Masculine, Singular
Last updated: 30 August 2012
Welsh: ymosodiad gan derfysgwyr
English: terrorist attack
Status C
Subject: General
Part of speech: Noun, Masculine, Singular
Last updated: 28 February 2005
Welsh: ymosodiad gan Rwsia
English: Russian invasion
Status B
Subject: Politics
Part of speech: Noun, Masculine, Singular
Plural: ymosodiadau gan Rwsia
Context: Mae Llywodraeth Cymru yn cefnogi cyflogi pobl sydd wedi'u dadleoli o Wcráin yn dilyn yr ymosodiad gan Rwsia.
Notes: Yng nghyd-destun yr ymateb i sefyllfa Wcráin.
Last updated: 26 January 2023
Welsh: ymosodiad gwaethygedig ar sail hil neu grefydd
English: racially or religiously aggravated assault
Status B
Subject: Justice and order
Part of speech: Noun, Masculine, Singular
Last updated: 1 August 2012
Welsh: ymosodiad person-yn-y-canol
English: man-in-the-middle attack
Status B
Subject: ICT
Part of speech: Noun, Masculine, Singular
Plural: ymosodiadau person-yn-y-canol
Definition: Math o ymosodiad seiber lle mae ymosodwr yn ymyrryd â chyfathrebiad rhwng dau barti gan wneud i’r ddau gredu eu bod yn cyfathrebu’n uniongyrchol â’i gilydd, tra bod ymosodwr yn gallu darllen, addasu neu gipio'r negeseuon rhyngddynt.
Notes: Cymharer â'r term interception attack / ymosodiad rhyng-gipio.
Last updated: 13 November 2025
Welsh: ymosodiad rhyng-gipio
English: interception attack
Status B
Subject: ICT
Part of speech: Noun, Masculine, Singular
Plural: ymosodiadau rhyng-gipio
Definition: Math o ymosodiad seiber lle mae ymosodwr yn gallu darllen a chipio cyfathrebiadau rhwng dau barti.
Notes: Cymharer â'r term man-in-the-middle attack / ymosodiad person-yn-y-canol.
Last updated: 13 November 2025
Welsh: ymosodiad sbam
English: spam attack
Status C
Subject: ICT
Part of speech: Noun, Masculine, Singular
Last updated: 31 December 2008
Welsh: ymosodiad seiber
English: cyber attack
Status C
Subject: ICT
Part of speech: Noun, Masculine, Singular
Plural: ymosodiadau seiber
Context: Rydym ar ddeall y ceir tua 60,000 o ymosodiadau seiber bob wythnos yn y DU. Ceir bygythiadau gan seiberdroseddwyr, hacwyr ymgyrchu a hacwyr maleisus dibrofiad, yn ogystal â bygythiadau gan wladwriaethau a bygythiadau a noddir gan wladwriaethau.
Last updated: 11 October 2016
Welsh: ymosodol
English: aggressive
Status B
Subject: Justice and order
Part of speech: Adjective
Context: of behaviour
Last updated: 2 August 2012
Welsh: Ymrannu o Amgylch Medoidau
English: Partitioning around Medoids
Status B
Subject: Finance and statistics
Part of speech: Proper noun
Notes: Angen rhoi'r Saesneg mewn testun italig rhwng cromfachau gan ei fod yn deitl technegol
Last updated: 10 March 2022
Welsh: Y Môr Celtaidd
English: Celtic Sea
Status B
Subject: Place-names
Part of speech: Noun, Masculine, Singular
Definition: Rhan o Gefnfor Iwerydd sydd i'r de o Iwerddon. Mae rhannau o arfordir Sir Benfro, ynghyd â Môr Hafren a rhannau o arfordir de-orllewin Lloegr, yn ffurfio ffin ddwyreiniol y môr hwn. Mae'n estyn i lawr i arfordir gorllewinol Llydaw.
Last updated: 12 January 2022
Welsh: ymreolaeth
English: autonomy
Status B
Subject: Education
Part of speech: Noun, Feminine, Singular
Definition: Rhaglen Arweinyddiaeth I Benaethiaid mewn Swydd
Last updated: 22 May 2003
Welsh: ymreolaeth
English: autonomy
Status B
Subject: General
Part of speech: Noun, Feminine, Singular
Definition: Annibyniaeth bersonol.
Last updated: 18 May 2023
Welsh: ymreolaeth gyllidol
English: fiscal autonomy
Status A
Subject: Finance and statistics
Part of speech: Noun, Feminine, Singular
Last updated: 5 February 2014
Welsh: ymrestru
English: enrol (oneself)
Status C
Subject: Education
Part of speech: Verb
Definition: To enrol oneself eg for a course.
Last updated: 9 February 2009
Welsh: ymroddiad
English: dedication
Status B
Subject: Education
Part of speech: Noun, Masculine, Singular
Definition: Rhaglen Arweinyddiaeth I Benaethiaid mewn Swydd
Context: To a cause or belief.
Last updated: 22 May 2003
Welsh: Ymroi
English: Striving
Status C
Subject: Personnel
Part of speech: Verb
Definition: One of the four performance management competencies 2011-2012.
Context: Un o bedair thema cymwyseddau Rheoli Perfformiad 2011-12. Dyma'r lleill: Meddwl, Ymwneud a Gwneud.
Last updated: 7 June 2011
Welsh: ymroi i
English: participate actively
Status C
Subject: Education
Part of speech: Verb
Last updated: 29 September 2005
Welsh: Ymrwymedig i Atebion i Hybu Teithio Cynaliadwy
English: Committed to Sustainable Travel Solutions
Status C
Subject: Transport
Last updated: 11 July 2008
Welsh: ymrwymiad amser
English: time commitment
Status C
Subject: General
Part of speech: Noun, Masculine, Singular
Last updated: 8 December 2004
Welsh: ymrwymiad ar blastigion
English: plastics pact
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Context: Cadarnhaodd y Gweinidog hefyd fod Llywodraeth Cymru wedi llofnodi 'Ymrwymiad ar Blastigion' WRAP (Rhaglen Gweithredu'r Cynllun Gwastraff ac Adnoddau), sef ymrwymiad gan fusnesau i leihau maint y gwastraff plastig sy'n cael ei gynhyrchu yn y DU.
Last updated: 20 June 2018
Welsh: ymrwymiad ar y cyd
English: mutual undertaking
Status B
Subject: Planning
Part of speech: Masculine, Singular
Definition: Cytundeb rhwng awdurdodau caffael a pherchnogion tir, y tu allan i’r broses brynu orfodol, i sicrhau bod cynlluniau datblygu yn cael eu gweithredu ac i sicrhau bod tir yn cael ei ailddefnyddio'n briodol.
Last updated: 18 November 2021
Welsh: ymrwymiadau lleihau allyriadau
English: emission reduction commitments
Status B
Subject: Environment
Part of speech: Noun, Plural
Context: Cytunwyd ar welliant 2012 ymysg y Partïon gyda'r bwriad o ddiogelu iechyd pobl a'r amgylchedd yn well fyth trwy bennu ymrwymiadau lleihau allyriadau ar gyfer pum llygrydd aer i'w cyflawni erbyn 2020 a diweddaru gwerthoedd terfyn allyriadau llygryddion aer yn y tarddiad.
Last updated: 16 September 2024
Welsh: Ymrwymiad Cenedlaethol i Wasanaeth o Safon
English: National Quality of Service Commitment
Status B
Subject: Justice and order
Part of speech: Noun, Masculine, Singular
Last updated: 30 August 2012
Welsh: ymrwymiad contractiol rhwymol
English: binding contractual commitment
Status C
Subject: Law
Part of speech: Noun, Masculine, Singular
Plural: ymrwymiadau contractiol rhwymol
Context: I roi effaith i'r ymrwymiad hwn, amgaeaf lythyr safonol a fyddai'n darparu ymrwymiad contractiol rhwymol rhwng y cyflogwr a'r clinigydd.
Last updated: 17 January 2020
Welsh: ymrwymiad cymunedau
English: community buy-in
Status C
Subject: Community development
Part of speech: Noun, Masculine, Singular
Last updated: 20 March 2013
Welsh: Ymrwymiad Effeithlonrwydd Ynni
English: Energy Efficiency Commitment
Status C
Subject: Environment
Part of speech: Noun, Masculine, Singular
Definition: EEC. A programme encouraging domestic gas and electricity customers to improve energy efficiency.
Last updated: 1 July 2005
Welsh: ymrwymiad etifeddol
English: legacy commitment
Status A
Subject: Finance and statistics
Part of speech: Noun, Masculine, Singular
Last updated: 6 April 2011
Welsh: Ymrwymiad Gwasanaeth Cyffredinol
English: Universal Service Commitment
Status C
Subject: ICT
Part of speech: Noun, Masculine, Singular
Definition: USC
Last updated: 18 May 2012