From Proto-Tai *ʔoːjꟲ (“sugar cane”). Cognate with Thai อ้อย (ɔ̂i), Isan อ้อย, Northern Thai ᩋᩬ᩠᩶ᨿ, Khün ᩋᩭ᩶, Lü ᦀᦾᧉ (˙ʼoay²), Tai Dam ꪮ꫁ꪮꪥ, Tai Dón ꪮꪮꪥꫂ, Shan ဢွႆႈ (ʼāui), Zhuang oij.
ອ້ອຍ • (ʼǭi)