συστατός
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)
ή, όν,
A capable of being formed, A.D.Pron.113.18, Synt.174.1, al. 2 constructed, ἐξ ἑτέρων S.E.M.1.104; well-made, consistent, μάθημα ib.57. 3 = εὐσύστατος 11 (quod fort. legend.), Vett.Val. in Cat. Cod.Astr.2.170.