Etymograph

English

equiefficient

From equi- + efficient.

Formed from equi- + efficient

Old Latin aiquos

Latin aequus ‘equal’

English equi-

Latin efficiō ‘to work out, accomplish’

Latin efficiēns ‘accomplishing’

English efficient

Today it means

adj equally efficient

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

Etymograph / equiefficient