From Proto-Tai *kroːkᴰ (“spear”). Cognate with Thai หอก (hɔ̀ɔk), Northern Thai ᩉᩬᨠ, Lao ຫອກ, Khün ᩉᩬᨠ, Lü ᦠᦸᧅᧈ (ḣoak¹), Shan ႁွၵ်ႇ (hàuk), Ahom 𑜍𑜨𑜀𑜫 (rok), Zhuang rok or kyok.
ꪬꪮꪀ (transliteration needed)