weak, wearied, in distress
儜 centers on a state of diminished strength or vitality: being weak, wearied, or in distress. The meanings describe a person who is physically or mentally depleted.
儜 combines 亻 (person) with 寧, which likely contributes the sound and may relate to the idea of being settled or at peace, but the exact historical development of the meaning 'weak' is uncertain.
A person 亻 beside 寧 (which can suggest peace or rest) might look weak or wearied, as if resting from exhaustion.
For ドウ, imagine a weak person saying 'dough' when they can't even knead bread: dough -> ドウ, and the person is too wearied to work.