Thai ลาก

← Ahom 𑜎𑜀𑜫 (cognate)

← Lao ລາກ (cognate)

← Shan လၢၵ်ႈ (cognate)

← Proto-Tai *C̬.laːkᴰ (inherited)

← Zhuang rag (cognate)

← Nong Zhuang laeg (cognate)

← Zuojiang Zhuang lag (cognate)

→ Thai รถลาก (compound)

→ Zhuang rag (cognate)