rheiddio

Welsh

Etymology

From rhaidd (“ray, beam”) +‎ -io.

Pronunciation

IPA^(key): /ˈr̥eiðjɔ/

Verb

rheiddio (first-person singular present rheiddiaf)

1. to beam, to radiate

Conjugation

Conjugation (literary)

	singular			plural			impersonal
	first	second	third	first	second	third
present indicative/future	rheiddiaf	rheiddi	rheiddia	rheiddiwn	rheiddiwch	rheiddiant	rheiddir
imperfect (indicative/subjunctive)/conditional	rheiddiwn	rheiddit	rheiddiai	rheiddiem	rheiddiech	rheiddient	rheiddid
preterite	rheiddiais	rheiddiaist	rheiddiodd	rheiddiasom	rheiddiasoch	rheiddiasant	rheiddiwyd
pluperfect	rheiddiaswn	rheiddiasit	rheiddiasai	rheiddiasem	rheiddiasech	rheiddiasent	rheiddiasid, rheiddiesid
present subjunctive	rheiddiwyf	rheiddiech	rheiddio	rheiddiom	rheiddioch	rheiddiont	rheiddier
imperative	—	rheiddia	rheiddied	rheiddiwn	rheiddiwch	rheiddient	rheiddier
verbal noun	rheiddio
verbal adjectives	rheiddiedig rheiddiadwy

Conjugation (colloquial)

Inflected colloquial forms	singular			plural
	first	second	third	first	second	third
future	rheiddia i, rheiddiaf i	rheiddi di	rheiddith o/e/hi, rheiddiff e/hi	rheiddiwn ni	rheiddiwch chi	rheiddian nhw
conditional	rheiddiwn i, rheiddswn i	rheiddiet ti, rheiddset ti	rheiddiai fo/fe/hi, rheiddsai fo/fe/hi	rheiddien ni, rheiddsen ni	rheiddiech chi, rheiddsech chi	rheiddien nhw, rheiddsen nhw
preterite	rheiddiais i, rheiddies i	rheiddiaist ti, rheiddiest ti	rheiddiodd o/e/hi	rheiddion ni	rheiddioch chi	rheiddion nhw
imperative	—	rheiddia	—	—	rheiddiwch	—
Note: All other forms are periphrastic, as usual in colloquial Welsh.

Mutation

Welsh mutation
radical	soft	nasal	aspirate
rheiddio	reiddio	unchanged	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), “rheiddio”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies