διάπικρος
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)
ον,
A very bitter, ὕδωρ D.S.2.48, 19.98.
Greek (Liddell-Scott)
διάπικρος: -ον, λίαν πικρός, κατάπικρος, ὕδωρ Διόδ. 2. 48.
