Onomatopoeia (ὀνοματοποιίᾱ making of a name or word) is the formation of names to express natural sounds.
βληχῶμαι bleat, βομβῶ buzz, βρῡχῶμαι roar, κοάξ quack, κακκαβίζω cackle, κόκκυξ cuckoo, κράζω croak, τῑτίζω cheep, πιππίζω chirp. Sometimes the sound of a whole verse imitates an action; as αὖτις ἔπειτα πέδονδε κυλίνδετο λᾶας ἀναιδής
down again to the plain rolled the shameless stone λ 598 (of the stone of Sisyphus).