careless, negligent, slipshod
遢 centers on a lack of care or attention: being careless, negligent, or slipshod in action or work.
遢 combines the movement radical 辶 with a phonetic component that historically included 日 and 羽. The exact origin of the inner component is uncertain, but the character likely expressed a sense of careless or negligent movement.
The movement radical 辶 surrounds a jumble of 日 (sun) and 羽 (feathers). Picture someone walking carelessly, kicking up feathers in the sunlight without paying attention.
For トウ, imagine a careless person stubbing their toe (トウ) while walking distractedly: toe -> トウ, and the pain reminds them to be less negligent.
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