Doubtless, humans must open or unravel their mouths to breathe. But how does unrolling or untying semantically relate to resting?
How did 攴 ('rap, tap') semantically shift to mean these definitions?
I couldn't find 敨 on CUHK or Taiwan MOE, and I don't know what other Cantonese homophone to attempt. Wikipedia romanizes as tǒu in Pinyin, but p 951 on ABC Chinese–English Comprehensive Dictionary (2003) purportedly hasn't listed some of the other meanings.
Yellowbridge isn't befitting my browser, and I can't screenshot the entirety of its character decomposition.