This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
The exact historical development of 遬 is uncertain. It combines the movement radical 辶 with 欶, but the original semantic and phonetic roles are unclear.
The movement radical 辶 suggests motion, but the inner component 欶 is obscure. Without a clear meaning, treat 遬 as a shape to recognize rather than a story to decode.
For チョク, imagine a rare bird named Choku that moves quickly along a path: Choku -> チョク, and the movement radical 辶 hints at motion.