My Name's Etymology

Shortening of jean fustian, itself from jean (from Middle English Gene (“Genoa [city state]”), the -s was added influenced by the cognate Old French Jannes, (modern=) Gênes) + fustian (“strong cotton fabric”) (fromMiddle English, from Old French fustaine, from medieval Latin fustaneum, probably from Latin fustis (“club; (medieval sense) tree trunk”).