σφριγῶν
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 (Woodhouse)
befresh, bursting, full of life, full-blooded, highty strung, in full health, in full health and strength, luxuriant, plump, prosperous, rash, strong, swollen, turgid, vehement, violent, well developed
