αὐτόνοος
From LSJ
οὐδ' ἄμμε διακρινέει φιλότητος ἄλλο, πάρος θάνατόν γε μεμορμένον ἀμφικαλύψαι → nor will anything else divide us from our love before the fate of death enshrouds us (Apollonius of Rhodes, Argonautica 3.1129f.)
English (LSJ)
ον, contr. αὐτό-νους, ουν, of the Phaeacian ships,
A instinct with sense, Eust. 1153.32, with allusion to the nymph Autonoe.