travel, go to, deceive, scare
迋 has two distinct meaning clusters: one around physical movement (travel, go to) and another around deception or intimidation (deceive, scare). The connection between these clusters is not obvious from the given meanings, so treat them as separate uses.
迋 combines the movement radical 辶 with 王, but the historical role of 王 here is uncertain. It may have originally contributed a sound or meaning, but the exact development is unclear.
The movement radical 辶 suggests going or traveling. The inner 王 (king) can be seen as a king moving through his domain, but the deception/scare meanings are harder to tie to this image. Perhaps imagine a king traveling to deceive or intimidate rivals.
For オウ, picture a king (王) traveling while saying 'Oh!' (オウ) in surprise at the deception he encounters on the road.