From Proto-Tai *rakᴰ (“lacquer”). Cognate with Thai รัก (rák), Lao ຮັກ (hak), Northern Thai ᩁᩢ᩠ᨠ, Khün ᩁᩢ᩠ᨠ, Lü ᦣᧅ (hak), and Shan ႁၵ်ႉ (hâ̰k). Compare Sanskrit लाक्षा (lākṣā, “a species of plant”).
ᥞᥐ (hak) (1963 orthography ᥞᥐ)