synnu

Welsh

Perhaps a variant of synio (“think, imagine”).^[1] Equivalent of syn (“surprised”) +‎ -u.

synnu (first-person singular present synnaf, not mutable)

Conjugation (literary)

	singular			plural			impersonal
	first	second	third	first	second	third	impersonal
present indicative/future	synnaf	synni	synna	synnwn	synnwch	synnant	synnir
imperfect (indicative/subjunctive)/ conditional	synnwn	synnit	synnai	synnem	synnech	synnent	synnid
preterite	synnais	synnaist	synnodd	synnasom	synnasoch	synnasant	synnwyd
pluperfect	synnaswn	synnasit	synnasai	synnasem	synnasech	synnasent	synnasid, synnesid
present subjunctive	synnwyf	synnych	synno	synnom	synnoch	synnont	synner
imperative	—	synna	synned	synnwn	synnwch	synnent	synner
verbal noun	synnu
verbal adjectives	synnedig synnadwy

Conjugation (colloquial)

Inflected colloquial forms	singular			plural
Inflected colloquial forms	first	second	third	first	second	third
future	synna i, synnaf i	synni di	synnith o/e/hi, synniff e/hi	synnwn ni	synnwch chi	synnan nhw
conditional	synnwn i, synswn i	synnet ti, synset ti	synnai fo/fe/hi, synsai fo/fe/hi	synnen ni, synsen ni	synnech chi, synsech chi	synnen nhw, synsen nhw
preterite	synnais i, synnes i	synnaist ti, synnest ti	synnodd o/e/hi	synnon ni	synnoch chi	synnon nhw
imperative	—	synna	—	—	synnwch	—
Note: All other forms are periphrastic, as usual in colloquial Welsh.

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