[1] The headword has the same or similar glossing in other lexica (references at Photius omicron23 Theodoridis), and in a scholion on Homer, Iliad 11.68, where o)/gmon (accusative case) occurs in a simile (web address 1). The phrase o)/gmoi staxu/wn, if it is the quotation it appears to be, looks like a version of o)/gmoi ... a)staxu/wn in the second Homeric Hymn, to Demeter (lines 455-6). See web address 2.
[2] Sophocles, Philoctetes 162-3 (web address 3), with the related verb o)gmeu/w.
[3] Greek Anthology 6.258.1-2 (Adaeus), quoted again at omicron 95. On this epigram, wherein a farmer dedicates livestock and cakes to Demeter, see Gow and Page (vol. I, 4-5); (vol. II, 4-5); and further extracts at alpha 2751, gamma 165, and phi 507. As Gow and Page note (vol. II, 4), the adjective e)mo/gmios, -on (presiding over the furrows, here in the vocative singular) appears only in this epigram, the Suda (again at omicron 95), and in Eustathius Commentaries on Homer's Iliad 4.250.8 (there in the masculine/feminine nominative singular).