Where does “iso-” come from?

iso- (English) comes from Ancient Greek ῐ̓́σος, from Ancient Greek βάρος, from Ancient Greek βαρύς, from Proto-Hellenic gʷarus, from Proto-Indo-European gʷréh₂us, from Proto-Indo-European -us — Forms adjectives from Caland system roots.

iso- (English): equal; forms terms relating to isomers; forms...

Definitions

  1. equal; forms terms relating to isomers; forms...

Ancestry of “iso-”, step by step

StepLanguageWordMeaning
1Ancient Greekῐ̓́σοςequal
2Ancient Greekβάροςweight, burden, load; grief, sorrow; plenty
3Ancient Greekβαρύςheavy, weighty; heavy, burdensome, oppressive;...
4Proto-Hellenicgʷarusheavy
5Proto-Indo-Europeangʷréh₂usheavy
6Proto-Indo-European-usForms adjectives from Caland system roots

Words derived from “iso-

Every word from Proto-Indo-European -us
iso- — Etymology, Origin & Word History | Etymology Explorer