The story
- Ancient Greek · derived fromδεύτερος“second”
- English todaydeuteron
From deutero- + -on. From deuterium, from Ancient Greek δεύτερος (deúteros, “second”).
Words from the same roots
Ancient Greekδεύτερος all →
deuteriumdeuteridedeutero-
Etymology from Wiktionary, CC BY-SA 4.0.