compare (v.) Look up compare at Dictionary.com
late 14c., from Old French comparer (12c., Modern French comparer), from Late Latin comparare "to liken, to compare," from com "with, together" (see com-) + par "equal" (see par (n.)). Related: Compared; comparing. To compare notes is from 1708. Phrase without compare (attested from 1620s, but similar phrasing dates to 1530s) seems to be altered by folk etymology from compeer "rival."