Where does “Oriṣabinu” come from?

Oriṣabinu (Yoruba) comes from Yoruba a, from Yoruba gùn — to be long (usually along a horizontal axis).

Ancestry of “Oriṣabinu”, step by step

Step	Language	Word	Meaning
1	Yoruba	a	we
2	Yoruba	gùn	to be long (usually along a horizontal axis)