English

amniocardiac

From amnio- + cardiac.

Ancient Greek ἀμνῐ́ον ‘caul, membrane around the fetus’

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

Today it means

adj Relating to the amnion and the heart

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

Etymograph / amniocardiac