barefoot
跿 centers on the state of being barefoot, specifically walking or moving without shoes.
跿 combines 足 (foot) with 走 (run), suggesting the idea of moving on foot without footwear. The exact historical development is uncertain.
The left side is 足 (foot) and the right side is 走 (run). Picture a bare foot running freely without shoes: 跿 means barefoot.
For ト, imagine a bare toe touching the ground: toe -> ト, and the bare foot runs.