This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
梂 combines 木 (tree/wood) with 求, which likely contributes sound. The exact historical development is uncertain.
With 木 (tree) and 求 (request), you might imagine a tree requesting something, but the actual meaning is unknown.
For キュウ, imagine a tree (木) making a cute request (求): cute -> キュウ, though the meaning remains a mystery.