English

equijoin

From equi- + join.

Formed from equi- + join

Old Latin aiquos

Latin aequus ‘equal’

English equi-

Proto-Indo-European *yewg- ‘to join’

Latin iungō ‘join’

Old French joindre

Middle English joinen ‘to join’

English join

Today it means

noun A join whose predicate uses only equality comparisons.

Language periods are conventional ranges, not dates for this word.

Etymograph / equijoin