Where does “Ganesha” come from?

Ganesha is derived from Sanskrit गणेश, composed of Sanskrit गण meaning "group" or "multitude" and Sanskrit गण्.

Ganesha (English): The psychedelic drug...

Definitions

Step	Language	Word	Meaning
1	Sanskrit	गणेश	—
2	Sanskrit	गण	a flock, troop, multitude, number, tribe, series,...
3	Sanskrit	गण्	count, calculate
4	Sanskrit	गृणाति	to call, call out to, invoke; to announce,...
5	Proto-Indo-Iranian	gr̥náHti	—
6	Proto-Indo-European	gʷr̥-né-H-ti	—
7	Proto-Indo-European	gʷerH-	to express approval; praise; to elevate

Ganesha — Etymology, Origin & Word History | Etymology Explorer