ἐὰν ᾖς φιλομαθής, ἔσει πολυμαθής → if you are studious, you will become learned
ἀοίκητος, ἄβατος, ἄβιος, ἀπέρημος, ἐρημία, τὰ ἔρημα, τὰ ἐρῆμα