This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
The exact historical development of 衋 is uncertain. It visually combines 聿, 皕, and 血, but the original semantic and phonetic roles of these components are unclear.
With no clear meaning, picture a mysterious ancient vessel: the top 聿 like a brush, the middle 皕 like doubled eyes, and the bottom 血 like a dish of blood. Its purpose is unknown.
For キョク, imagine a strange, unknown object that makes a sharp 'kyoku' sound when struck, like a gong in a forgotten temple.