carencia
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.
ἀπόλειψις, ἀπουσία, ἀνουσιότης, δέησις, διαμάρτησις, ἔκπτωσις, ἀπορησία, ἔλλειψις, δέος, τὸ ἐνδεές, ἀφορία, τὸ ἐλλιπές, ἐνδεής, ἀτυχία, ἀχηνία