English
equative
From equate + -ive.
A compound of equate + -ive
Old Latin aiquos
Latin aequus ‘level, equal’
Latin aequō ‘make equal or level’
Latin aequātus ‘equalized, having been made equal’
Middle English equaten
English equate
Today it means
adj Having the power to equate (make equal) two things.
Language periods are conventional ranges, not dates for this word.
Etymograph / equative