English
exocardiac
From exo- + cardiac.
Proto-Indo-European *h₁eǵʰs ‘out of’
Proto-Hellenic *eks
Ancient Greek ἐκ ‘Out of, from’
Ancient Greek ἔξω ‘outer’
English exo-
Proto-Indo-European *ḱerd- ‘heart’
…
Ancient Greek κᾰρδῐ́ᾱ ‘heart’
Ancient Greek κᾰρδῐᾰκός ‘concerning the heart’
Latin cardiacus ‘related to the heart or stomach’
Middle French cardiaque
English cardiac
Today it means
adj Outside of the heart
Language periods are conventional ranges, not dates for this word.
Etymograph / exocardiac