EarlEnglish From the aristocratic title, which derives from Old English eorl meaning "nobleman, warrior". It was either a nickname for one who acted like an earl, or an occupational name for a person employed by an earl.
GuerreroSpanish Means "warrior" in Spanish, an occupational name for a soldier. It is derived from Late Latin werra "war", of Germanic origin.
KempEnglish Derived from Middle English kempe meaning "champion, warrior".