Definition from Wiktionary, the free dictionary
From hiō (“yawn, gape”).
hīscō (defective conjugation)
- (intransitive) I yawn, gape, open.
- (intransitive) I open the mouth, mutter, murmur.
- (transitive) I speak, utter.
- This verb is defective, with only those forms based on the first principal part.
- hisco in Charlton T. Lewis & Charles Short, A Latin Dictionary, Oxford: Clarendon Press, 1879