eterno
From LSJ
ὀδοῦσι καὶ ὄνυξι καὶ πάσῃ μηχανῇ → tooth and nail | tooth, fang, and claw | in every possible way | by hook or by crook
Spanish > Greek
ἀδιάστατος, ἀένιος, ἐναΐδιος, ἀείγνητος, ἀειχρόνιος, ἀειγένητος, ἀείζωος, διαιώνιος, ἀειγενής, αἰώνιος, αἰειγενέτης, αἰανής, ἀίδιος, ἀκμής, ἄληκτος, ἀκατάπαυστος, ἄτροπος, ἄφθαρτος, ἀκατάλυτος, ἀγένητος, ἀθάνατος, ἀδάμαστος, εἰσαεί, δηναιός, ἄχρονος, ἀέναος, ἀλώφητος, ἀγήραος, ἀγήρως, ἀνέκλειπτος, ἀκατεύναστος, ἀδιάδοχος, αὐτόζωος, ἀστέμβακτος, ἀειθαλής, ἀείφρουρος, αἰείφρουρος