μηνιεῖος
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)
α, ον,
A = μηνιαῖος, Eudox.Ars 15.17; μηνιεῖα, τά, monthly rations, UPZ112 ii 6, viii 11 (ii B.C.); μηνιεῖος (sc. λόγος) τοῦ λοιπογραφομένου σίτου PGoodsp.Cair.7.7 (ii B.C.).