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.)
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.