נָדָן
From LSJ
Βέλτιστε, μὴ τὸ κέρδος ἐν πᾶσι σκόπει → Amice, ubique lucra sectari cave → Mein bester Freund, sieh nicht in allem auf Profit
English (Strong)
of uncertain derivation; a sheath (of a sword): sheath.
probably from an unused root meaning to give; a present (for prostitution): gift.