Primo Family History

Italian and Spanish: from the personal name Primo, meaning ‘first’ (Latin Primus), given to the eldest son in a family, or, in the case of the Italian name, a habitational name from a place named with this word. Portuguese and Spanish: relationship name, from primo ‘cousin’. Greek (Primos): nickname for a sailor, from Greek primos in the sense ‘favorable wind’, a derivative of Italian primo ‘first’.

Source: Dictionary of American Family Names ©2013, Oxford University Press