Word origin
 [1785–95; ‹ L 
ēvocātor one who calls to arms, equiv. to 
ēvocā(
re) to 
evoke + 
-tor -tor]This word is first recorded in the period 1785–95. Other words that entered Englishat around the same time include: edit, guillotine, logrolling, nitrogen, preemptive-tor is a suffix found in loanwords from Latin, forming personal agent nouns from verbsand, less commonly, from nouns. Other words that use the affix -tor include: dictator, genitor, janitor, orator, victor