ὁμηλῐκ-ία · homēlik-ia — LSJ
sameness of age (so perh. Il. 20.465), used as a collective, those of the same age, esp. of young persons, ὁμηλικίην ἐρατεινήν Il. 3.175 ; ὃν περὶ πάσης τῖεν ὁμηλικίης 5.326, cf. Od. 3.364, Thgn. 1018 ; οἶος -ίην ἐκέκαστο ὄρνιθας γνῶναι Od. 2.158, cf. Il. 13.431 : as subj. of pl. verb, Supp.Epigr. 1.567.6 (Karanis, iii B.C.).
of one person, = ὁμῆλιξ, ὁμηλικίη δʼ ἐμοὶ αὐτῷ but he is of the same age with myself, Od. 3.49 ; ὁ. δέ μοί ἐσσι 22.209, cf. 6.23 ; of two persons, Il. 13.485.