ἐκπνεῖν

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.)

Source

Greek > English (Woodhouse Verbs Reversed)

(see also ἐκπνέω): breathe out

Lexicon Thucydideum

spirare ex (de vento), to blow from (of wind), 2.84.2, [depravati codd. corrupted manuscripts ἐκπνεύσειν] 6.104.2.