ἐπαρτύω
From LSJ
Ζῆν οὐκ ἄξιος, ὅτῳ μηδὲ εἷς ἐστι χρηστὸς φίλος → Life is not worth living if you do not have at least one friend.
English (LSJ)
and ἐπαρτ-ύνω [ῡν],
A fit or fix on, αὐτίκ' ἐπήρτυε πῶμα Od.8.447. II prepare, ἐπὶ γὰρ Ζεὺς ἤρτυε πῆμα Od.3.152; ὄλεθρόν τινι Opp.C.2.443:—Med., δεῖπνον ἐπηρτύνοντο they prepared them a meal, h.Cer.128.