This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
哊 is a rare character whose historical development is uncertain. It visually combines 口 (mouth) and 有, but the original semantic or phonetic role of these components is unclear.
With 口 (mouth) beside 有 (possess), imagine a mouth trying to possess a sound but failing to form a clear word—reflecting its uncertain meaning.
For イク, picture a mouth (口) that can only produce a weak 'ick' sound, like a hiccup: ick -> イク, tied to the mouth radical.