This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
匑 combines the enclosure 勹 with 躬. The exact historical development is uncertain, but it likely follows a phono-semantic pattern where 躬 contributes sound and possibly a meaning related to the body or bowing.
The outer 勹 wraps around 躬 (body), suggesting a person bowing deeply in respect. This fits the kun-reading うやまう (to respect).
For キュウ, imagine a person bowing so deeply that they let out a soft 'kyuu' sound of effort: kyuu -> キュウ, tied to the respectful bowing shape.