Cognate withThaiฝ้าย(fâai),Northern Thaiᨺ᩶ᩣ᩠ᨿ,Lüᦚᦻᧉ(ḟaay²),Tàyphải,Bouyeiwaais,Zhuangfaiq.
ຝ້າຍ• (fāi)