List of Prefix in Welsh and English

To learn Welsh language common vocabulary is one of the important sections. Common Vocabulary contains common words that we can used in daily life. Here you learn Prefix words in English with Welsh translation. If you are interested to learn the most common Welsh Prefix words, this place will help you to learn Prefix words in Welsh language with their pronunciation in English. Prefix words are used in daily life conversations, so it is very important to learn all words in English and Welsh.

Read also: A-Z Dictionary | Quiz | Vocabulary | Alphabets | Grammar

List of Prefix words in Welsh

Here is the list of prefixes in Welsh language with meanings and their pronunciation in English.

de-

Deactivate	dadactifadu
Debate	dadl
Decade	degawd
Decent	gweddus
Decision	penderfyniad
Declare	datgan
Decode	dadgodio
Decomposition	dadelfeniad
Decrease	gostyngiad
Deduction	didyniad
Default	rhagosodedig
Defeat	trechu
Defend	amddiffyn
Deforest	datgoedwigo
Deformation	dadffurfiad
Degeneration	dirywiad
Demand	galw

dis-

Disaccord	anghytgord
Disaffection	dadrithiad
Disagree	anghytuno
Disappear	diflannu
Disapprove	anghymeradwyo
Discharge	gollyngiad
Discipline	disgyblaeth
Discompose	dadelfennu
Discount	disgownt
Discover	darganfod
Displeasure	anfodlonrwydd
Disqualify	anghymhwyso

ex-

Exceed	rhagori
Exchange	cyfnewid
Exhale	allanadlu
Explain	eglurwch
Explosion	ffrwydriad
Export	allforio

im-

Impair	amharu
Impassion	angerdd
Implant	mewnblaniad
Import	mewnforio
Impossible	amhosibl
Impress	argraff
Improper	amhriodol
Improve	gwella

in-

Inaction	diffyg gweithredu
Inactive	anactif
Inadequate	annigonol
Income	incwm
Incorrect	anghywir
Indirect	anuniongyrchol
Insecure	ansicr
Inside	tu mewn
Invisible	anweledig

inter-

Interaction	rhyngweithio
Interchange	cyfnewidfa
Intermission	ysbaid
International	rhyngwladol
Internet	rhyngrwyd
Interview	cyfweliad

ir-

Irradiation	arbelydru
Irrational	afresymegol
Irregular	afreolaidd
Irrelevant	amherthnasol
Irreplaceable	anadferadwy
Irreversible	diwrthdro

mid-

Midday	canol dydd
Midland	canolbarth
Midnight	hanner nos
Midway	hanner ffordd
Midwife	bydwraig

mis-

Misaligned	wedi'i gamlinio
Misguide	camarweiniad
Misinform	camhysbysu
Mislead	camarwain
Misplace	camle
Misrule	camreol
Misspelt	camsillafu
Mistake	camgymeriad
Misunderstand	camddealltwriaeth
Misuse	camddefnydd

non-

Non existent	ddim yn bodoli
Non pareil	di pareil
Nonchalant	nonchalant
Nonfiction	ffeithiol
Nonsense	nonsens
Nonstop	di-stop

over-

Overcharge	gordal
Overcome	goresgyn
Overflow	gorlif
Overlap	gorgyffwrdd
Overload	gorlwytho
Overlook	edrych dros
Overpower	gorphwysdra
Overrate	gorgyfradd
Overrule	goruwchreol

pre-

Predefine	rhagddiffinio
Prefix	rhagddodiad
Prehistory	cynhanes
Prepay	rhagdalu
Prepossess	rhagfeddiant
Prevail	drechaf
Preview	rhagolwg

pro-

Proactive	rhagweithiol
Proceed	symud ymlaen
Proclaim	cyhoeddi
Profess	proffesu
Profit	elw
Profound	dwys
Program	rhaglen
Progress	cynnydd
Prolong	ymestyn

re-

React	ymateb
Reappear	ailymddangos
Reclaim	adennill
Recollect	cofio
Recommendation	argymhelliad
Reconsider	ailystyried
Recover	adennill
Redo	ail-wneud
Rewrite	ailysgrifennu

tele-

Telecommunication	telathrebu
Telegram	telegram
Telepathic	telepathig
Telephone	ffôn
Telescope	telesgop
Television	teledu

trans-

Transfer	trosglwyddiad
Transform	trawsnewid
Transgender	trawsrywiol
Translation	cyfieithiad
Transparent	tryloyw
Transport	trafnidiaeth

un-

Undo	dadwneud
Unequal	anghyfartal
Unhappy	anhapus
Unpack	dadbacio
Unseen	anweledig
Unstable	ansefydlog
Unusual	anarferol

up-

Update	diweddariad
Upgrade	uwchraddio
Uphill	i fyny'r rhiw
Uphold	cynnal
Upset	cynhyrfu
Upstairs	i fyny'r grisiau
Upward	i fyny

Top 1000 Welsh words

Here you learn top 1000 Welsh words, that is separated into sections to learn easily (Simple words, Easy words, Medium words, Hard Words, Advanced Words). These words are very important in daily life conversations, basic level words are very helpful for beginners. All words have Welsh meanings with transliteration.

Eat	bwyta
All	I gyd
New	newydd
Snore	chwyrnu
Fast	cyflym
Help	help
Pain	poen
Rain	glaw
Pride	balchder
Sense	synnwyr
Large	mawr
Skill	sgil
Panic	panig
Thank	diolch
Desire	awydd
Woman	gwraig
Hungry	newynog

Learn more

Daily use Welsh Sentences

Here you learn top Welsh sentences, these sentences are very important in daily life conversations, and basic-level sentences are very helpful for beginners. All sentences have Welsh meanings with transliteration.

Good morning	Bore da
What is your name	Beth yw dy enw
What is your problem	Beth yw eich problem?
I hate you	Rwy'n casáu chi
I love you	Rwy'n dy garu di
Can I help you	A allaf eich helpu?
I am sorry	Mae'n ddrwg gennyf
I want to sleep	Dwi Eisiau cysgu
This is very important	Mae hyn yn bwysig iawn
Are you hungry	Ydych chi'n newynog?
How is your life	Sut mae eich bywyd?
I am going to study	Rydw i'n mynd i astudio