French word ourson comes from French ours (Bear (animal). Masthead (list of a newspaper's main staff).), French -on

Detailed word origin of ourson

Dictionary entry	Language	Definition
ours	French (fra)	Bear (animal). Masthead (list of a newspaper's main staff).
-on	French (fra)	Forming diminutives of things, including some animals.. Indicating origin or occupation. (physics, and, biology) -on.
ourson	French (fra)	Cub; bear cub.

Words with the same origin as ourson