infatigable
From LSJ
Ὁ αὐτὸς ἔφησε τὸν μὲν ὕπνον ὀλιγοχρόνιον θάνατον, τὸν δὲ θάνατον πολυχρόνιον ὕπνον → Plato said that sleep was a short-lived death but death was a long-lived sleep
Spanish > Greek
ἀκάμας, ἀκάματος, ἀκαμαντοπόδας, ἀκοπίαστος, ἀμόγητος, ἀμόχθητος, ἀναπαύδητος, ἀτειρήεις, ἀτειρής, ἀτηρής, ἄκαμνος, ἄκμητος, ἄτρυτος