This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
The exact historical development of 欫 is uncertain. It visually contains 欠 on the right, but the left component is not clearly identifiable in modern form.
Since the meaning is unclear, focus on the shape: a person 欠 on the right, and a complex left side that looks like a mix of 止 and other strokes. Imagine a rare, forgotten character with no fixed story.
For ケキ, imagine a quirky, rare key (ケキ) that unlocks the mystery of this unknown kanji. The key is shaped like the left side of 欫.