From Proto-Southwestern Tai *ʰlekᴰ¹ˢ (“iron”), from Proto-Tai *ʰlekᴰ (“iron”), from Old Chinese 鐵 (OC *l̥ʰiːɡ, “iron”). Cognate with Thai เหล็ก (lèk), Lao ເຫຼັກ (lek), Shan လဵၵ်း (láek), Ahom 𑜎𑜢𑜀𑜫 (lik), Zhuang lek or lik, Nong Zhuang liak.
ᥘᥥᥐᥱ (lěk) (1963 orthography ᥘᥥᥐ̌)