Etymograph

English

iridate

From iridium + -ate.

A compound of iridium + -ate

Ancient Greek ἶρις ‘rainbow’

English iridium

Today it means

noun The oxyanion of iridium Ir₂O₇⁶⁻; any salt containing this anion.

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

Etymograph / iridate