κητόομαι
From LSJ
ἀλλ᾽ ἀμφὶ τοῖς σφαλεῖσι μὴ 'ξ ἑκουσίας ὀργὴ πέπειρα → to those who err in judgment, not in will, anger is gentle | men's wrath is softened toward those who have erred unwittingly
English (LSJ)
Pass.,
A grow to a seamonster, ib.14.23.
German (Pape)
[Seite 1435] zum Seeungeheuer, zum großen Meerfisch heranwachsen, κητουμένῳ τῷ ἰχθύϊ Ael. H. A. 14, 23.