English

equiperiodic

From equi- + periodic.

Old Latin aiquos

Latin aequus ‘equal’

English equi-

Ancient Greek περίοδος ‘cycle, period of time’

Latin periodus ‘complete sentence, period, circuit’

Medieval Latin periodicus ‘cyclical’

French périodique

Today it means

adj Having the same period.

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

Etymograph / equiperiodic