From Proto-Tai *prakᴰ (“vegetable”). Cognate with Thai ผัก (pàk), Northern Thai ᨹᩢ᩠ᨠ, Lao ຜັກ (phak), Lü ᦕᧅ (ṗhak), Tai Nüa ᥚᥐᥴ (phák), Shan ၽၵ်း (phák), Ahom 𑜇𑜀𑜫 (phak), Zhuang byaek, Bouyei byagt.
พรั๊ก (transliteration needed)