fen
From LSJ
Μὴ κρῖν' ὁρῶν τὸ κάλλος, ἀλλὰ τὸν τρόπον → Mores in arbitrando, non faciem vide → Nach dem Charakter, nicht nach Schönheit urteile
subs.
P. and V. λίμνη, ἡ, P. ἕλος, τό. Ar. and P. τέλμα, τό. Of the fen, adj.: P. and V. ἕλειος, Ar. λιμναῖος.