Salt is iyọ̀.
It comes from the etymological root of “yọ̀,” which means sweet, glad, smooth, fluid.
It also means SLIPPERY.
It is from “yọ̀” that “ayọ̀” (joy) is derived.
Yoruba names such as Ayodele, Ayodeji, Adedayo, etc, are names alluding to salt, sweetness and joy.