κητεία
From LSJ
ἑὰν δὲ προσποιούμενος ᾗ τὰ μαθήματά πως ἀπείρως προβάλλων, οὐκ ἔστιν αἰτίας ἔξω → But should one profess knowledge as he puts forward something in an inexperienced way, he is not without blame (Pappus 3.1.30.31f.)
English (LSJ)
ἡ,
A fishing for large fish, esp. the tunny, Ael.NA13.16. 2 the place where it is carried on, Str.5.4.4 (pl., Ath.7.283c (pl.).
German (Pape)
[Seite 1435] ἡ, das Fangen großer Meerfische, bes. der Thunfische, u. der Ort, wo sie gefangen werden; Ath. VII, 283 c; Strab. V, 243. S. auch κητία.