Likewise or similarly in other lexica; references at Photius omicron349 Theodoridis. The headword -- aorist subjunctive, first person singular, of o)nomai/nw -- is taken to be quoted from Homer (where it is several times joined with a future indicative in the formula ou)k a)\n e)gw\ muqh/somai ou)d' o)nomh/nw: thus Iliad 2.488, Odyssey 4.240, 11.328 & 517; see also Iliad 9.121 for the headword in another phrase). The gloss could be aorist subjunctive or future indicative of the synonymous verb o)noma/zw.
cf. omega 120.