Probably from airo (perhaps with a (as a particle of union) prefixed); a chariot (as raised or fitted together (compare harmos)) -- chariot.
see GREEK airo
see GREEK a
see GREEK harmos
ἅρμα (arma) − 1 Occurrence
ἅρματι (armati) − 1 Occurrence
ἅρματος (armatos) − 1 Occurrence
ἁρμάτων (armatōn) − 1 Occurrence