ymffrostio

Welsh

ym- +‎ ffrost (“boast”) +‎ -io,^[1] ultimately from Proto-Indo-European *sper- (“to scatter”)^[2] [whence English spread, Ancient Greek σπείρω (speírō, “sow”)].

ymffrostio (first-person singular present ymffrostiaf)

Conjugation (literary)

	singular			plural			impersonal
	first	second	third	first	second	third	impersonal
present indicative/future	ymffrostiaf	ymffrosti	ymffrostia	ymffrostiwn	ymffrostiwch	ymffrostiant	ymffrostir
imperfect (indicative/subjunctive)/conditional	ymffrostiwn	ymffrostit	ymffrostiai	ymffrostiem	ymffrostiech	ymffrostient	ymffrostid
preterite	ymffrostiais	ymffrostiaist	ymffrostiodd	ymffrostiasom	ymffrostiasoch	ymffrostiasant	ymffrostiwyd
pluperfect	ymffrostiaswn	ymffrostiasit	ymffrostiasai	ymffrostiasem	ymffrostiasech	ymffrostiasent	ymffrostiasid, ymffrostiesid
present subjunctive	ymffrostiwyf	ymffrostiech	ymffrostio	ymffrostiom	ymffrostioch	ymffrostiont	ymffrostier
imperative	—	ymffrostia	ymffrostied	ymffrostiwn	ymffrostiwch	ymffrostient	ymffrostier
verbal noun	ymffrostio
verbal adjectives	ymffrostiedig ymffrostiadwy

Conjugation (colloquial)

Inflected colloquial forms	singular			plural
Inflected colloquial forms	first	second	third	first	second	third
future	ymffrostia i, ymffrostiaf i	ymffrosti di	ymffrostith o/e/hi, ymffrostiff e/hi	ymffrostiwn ni	ymffrostiwch chi	ymffrostian nhw
conditional	ymffrostiwn i, ymffrostswn i	ymffrostiet ti, ymffrostset ti	ymffrostiai fo/fe/hi, ymffrostsai fo/fe/hi	ymffrostien ni, ymffrostsen ni	ymffrostiech chi, ymffrostsech chi	ymffrostien nhw, ymffrostsen nhw
preterite	ymffrostiais i, ymffrosties i	ymffrostiaist ti, ymffrostiest ti	ymffrostiodd o/e/hi	ymffrostion ni	ymffrostioch chi	ymffrostion nhw
imperative	—	ymffrostia	—	—	ymffrostiwch	—
Note: All other forms are periphrastic, as usual in colloquial Welsh.

Welsh mutation
radical	soft	nasal	h-prothesis
ymffrostio	unchanged	unchanged	hymffrostio
Note: Some of these forms may be hypothetical. Not every possible mutated form of every word actually occurs.

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