deifio

Welsh

Pronunciation

• IPA^(key): /ˈdei̯vjɔ/
• Rhymes: -ei̯vjɔ

Etymology 1

From Middle Welsh deifyaw, from Proto-Brythonic *dėβjɨd (compare Cornish dewi, Breton deviñ) for which Matasović provides two etymologies:

1. from Proto-Celtic *dawyeti, from Proto-Indo-European *deh₂w- (“kindle, burn”) (compare Tocharian A twās, Ancient Greek δαίω (daíō))
2. from Proto-Celtic *degʷyeti, from Proto-Indo-European *dʰegʷʰ- (“to burn”)

By surface analysis, daif +‎ -io.

Verb

deifio (first-person singular present deifiaf)

1. to scorch, singe
2. to blast
3. to blight

Conjugation

Conjugation (literary)

	singular			plural			impersonal
	first	second	third	first	second	third
present indicative/future	deifiaf	deifi	daif, deifia	deifiwn	deifiwch	deifiant	deifir
imperfect (indicative/subjunctive)/conditional	deifiwn	deifit	deifiai	deifiem	deifiech	deifient	deifid
preterite	deifiais	deifiaist	deifiodd	deifiasom	deifiasoch	deifiasant	deifiwyd
pluperfect	deifiaswn	deifiasit	deifiasai	deifiasem	deifiasech	deifiasent	deifiasid, deifiesid
present subjunctive	deifiwyf	deifiech	deifio	deifiom	deifioch	deifiont	deifier
imperative	—	daif, deifia	deified	deifiwn	deifiwch	deifient	deifier
verbal noun	deifio
verbal adjectives	deifiedig deifiadwy

Conjugation (colloquial)

Inflected colloquial forms	singular			plural
	first	second	third	first	second	third
future	deifia i, deifiaf i	deifi di	deifith o/e/hi, deififf e/hi	deifiwn ni	deifiwch chi	deifian nhw
conditional	deifiwn i, deifiswn i	deifiet ti, deifiset ti	deifiai fo/fe/hi, deifisai fo/fe/hi	deifien ni, deifisen ni	deifiech chi, deifisech chi	deifien nhw, deifisen nhw
preterite	deifiais i, deifies i	deifiaist ti, deifiest ti	deifiodd o/e/hi	deifion ni	deifioch chi	deifion nhw
imperative	—	deifia	—	—	deifiwch	—
Note: All other forms are periphrastic, as usual in colloquial Welsh.

Related terms

• cynnau
• cynnud
• tewyn

Etymology 2

From English dive +‎ -io.

Verb

deifio (first-person singular present deifiaf)

1. to dive

Mutation

Welsh mutation
radical	soft	nasal	aspirate
deifio	ddeifio	neifio	unchanged
Note: Some of these forms may be hypothetical. Not every possible mutated form of every word actually occurs.

Further reading

• R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke et al., editors (1950–present), “deifio”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies