ὑποτρόπιος
From LSJ
πωγωνοτροφία φιλόσοφoν οὐ ποιεῖ → a long beard does not make the philosopher
English (LSJ)
a (Ep. η), ον, (τρόπις) under the keel, Opp.H.1.224, Orph.A.267.
Greek (Liddell-Scott)
ὑποτρόπιος: -α, -ον, ὁ ὑπὸ τὴν τρόπιν, Ὀππ. Ἀλ. 1. 224, Ὀρφ. Ἀργ. 269.
German (Pape)
unter dem Schiffskiele befindlich; Orph. Arg. 265; Opp. Hal. 1.224.