In context|obsolete|lang=en terms the difference between temper and spitfire
is that
temper is (obsolete) to fit together; to adjust; to accommodate while
spitfire is (obsolete) a spirited young woman.
As nouns the difference between temper and spitfire
is that
temper is a tendency to be of a certain type of mood while
spitfire is a person with a fiery temper, someone easily provoked to anger.
As a verb temper
is to moderate or control.