stealthy footsteps
蹐 centers on moving with quiet, careful steps to avoid detection: stealthy footsteps, tiptoeing, or sneaking.
蹐 combines 足 (foot) with 脊, which likely contributes the sound and may relate to the idea of stepping lightly or carefully. The exact historical development is uncertain.
The foot radical 足 beside 脊 suggests a foot moving with a spine-like, careful precision—imagine tiptoeing so quietly that even your backbone feels tense.
For セキ, picture a spy taking stealthy footsteps past a security checkpoint: sec -> セキ, and the spy's quiet steps avoid detection.
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