Where does “Maurice” come from?

Maurice (Middle English) comes from Latin Mauritius, from Latin maurus, from French maure, from Middle French moré, from Old French More, from Latin Maurus, from Ancient Greek Μαυρούσιος, from Ancient Greek -ούσιος — Creates adjectives from noun or verb stems.

Ancestry of “Maurice”, step by step

Maurice traces back through two separate lines of ancestry.

via Latin Mauritius

Step	Language	Word	Meaning
1	Latin	Mauritius	—
2	Latin	maurus	Moorish, North African
3	French	maure	Moorish
4	Middle French	moré	Moor (person of Berber descent)
5	Old French	More	—
6	Latin	Maurus	Of or pertaining to the Moors; Moorish,...
7	Ancient Greek	Μαυρούσιος	an inhabitant of Mauretania; a Mauretanian
8	Ancient Greek	-ούσιος	forms relational adjectives: of or pertaining to
9	Ancient Greek	-ῐος	belonging to; of”, “belonging to”, “pertaining to
10	Proto-Indo-European	-yós	Creates adjectives from noun or verb stems

via Late Latin Mauritius

Step	Language	Word	Meaning
1	Late Latin	Mauritius	—

Words derived from “Maurice”

Every word from Proto-Indo-European -yós →Every word from Ancient Greek -ῐος →Every word from Ancient Greek -ούσιος →