Meaning: ⲟⲣ-, 'head' + -ⲛ (genitive) + ⲟⲩⲣⲧ-, 'possession' + -ⲁ = 'the possession of head'? Otherwise, the second element may derive from ⲟⲩⲣ-, 'head', producing the meaning 'head of heads' or the like; in this interpretation, however, the ending -ⲧⲁ is difficult to analyse.
Meaning: unknown, perhaps cognate with the Nobiin ⲟⲣⲣ-, 'to brake, interrupt', or ⲟⲣⲣⲉ, 'pea'. It may also be somehow connected with the Old Nubian ⲟⲣ-, 'head'.