go beyond
踰 centers on moving past a limit: going beyond a boundary, exceeding a threshold, or stepping over a line.
踰 combines 足 (foot) with 俞, which likely contributes the sound and may relate to the idea of passing through or over. The exact historical development of 俞 is uncertain.
The left side is 足 (foot), and the right side 俞 looks like a gate or barrier. Picture a foot stepping over the gate to go beyond.
For ユ, imagine you stepping beyond a line: you -> ユ, and your foot crosses the boundary.