LogeionPerseus analysis of ἑκάτοιο:
ἕκατος: masc gen sg (epic)
LSJ entry
ἕκᾰτος
ἕκατος,
ὁ,
shortd. fr. ἑκατη-βόλος (q.v.), epith. of Apollo, Il. 7.83,
20.295 :—as Subst.,
ἕκατος,
ὁ,
1.385,
20.71 (connected with ἑκατόν (sc. βέλη)
by Simon. 26 A) :—fem. ἑκάτη,
epith. of Artemis, A. Supp. 676 (lyr.), Corn. ND 32.