Where does “cardio-” come from?

cardio- (Portuguese) comes from Ancient Greek Καρδία, from Proto-Hellenic kərdíyā, from Proto-Indo-European ḱr̥díyeh₂, from Proto-Indo-European ḱḗr — heart.

cardio- (Portuguese): cardio

Definitions

  1. cardio

Ancestry of “cardio-”, step by step

StepLanguageWordMeaning
1Ancient GreekΚαρδίαheart (as the source of emotion, love, etc.)
2Proto-Hellenickərdíyā—
3Proto-Indo-Europeanḱr̥díyeh₂—
4Proto-Indo-Europeanḱḗrheart

Words derived from “cardio-”

Every word from Proto-Indo-European ḱḗr →Every word from Proto-Indo-European ḱr̥díyeh₂ →Every word from Proto-Hellenic kərdíyā →