Where does “zygocardiac” come from?

zygocardiac (English) comes from English cardiac, from Middle French cardiaque, from Latin cardiacus, from Ancient Greek καρδιακός, from Ancient Greek Καρδία, from Proto-Hellenic kərdíyā, from Proto-Indo-European ḱr̥díyeh₂, from Proto-Indo-European ḱḗr — heart.

zygocardiac (English): Yoke-like and cardiac; applied to an ossicle of the stomach of some crustaceans

Definitions

  1. Yoke-like and cardiac; applied to an ossicle of the stomach of some crustaceans

Ancestry of “zygocardiac”, step by step

zygocardiac traces back through two separate lines of ancestry.

via English cardiac

StepLanguageWordMeaning
1EnglishcardiacPertaining to the heart; Pertaining to the...
2Middle Frenchcardiaque
3Latincardiacusrelated to the heart or stomach (particularly for diseases or ailments)
4Ancient Greekκαρδιακόςconcerning the heart; suffering from a heart...
5Ancient GreekΚαρδίαheart (as the source of emotion, love, etc.)
6Proto-Hellenickərdíyā
7Proto-Indo-Europeanḱr̥díyeh₂
8Proto-Indo-Europeanḱḗrheart

via English zygo

StepLanguageWordMeaning
1Englishzygo
Every word from Proto-Indo-European ḱḗr