Where does “လၢၵ်ႈမၢတ်ႈ” come from?

လၢၵ်ႈမၢတ်ႈ (Shan) comes from Burmese လက်မှတ်, from Burmese လက်, from Old Burmese လက်, from Proto-Sino-Tibetan *tV-lak — hand.

လၢၵ်ႈမၢတ်ႈ (Shan): signature