saunter, go back
逡 centers on hesitant, backward movement: sauntering slowly or stepping back as if reluctant to proceed.
逡 combines the movement radical 辶 with 夋, which likely contributes the sound and the idea of slowness or hesitation. The exact historical development of 夋 is uncertain.
The movement radical 辶 wraps around 夋, a shape that looks like someone dawdling. Picture a person sauntering along a path, then turning back hesitantly.
For シュン, imagine someone shunning the path ahead and going back: shun -> シュン, and the hesitant movement matches the kanji's meaning.