-cardia

The story

1. Ancient Greek · learned borrowing fromκᾰρδῐ́ᾱ
2. Ancient Greek · learned borrowing fromκᾰρδῐ́ᾱ
3. English today-cardia

Learned borrowing from Ancient Greek κᾰρδῐ́ᾱ (kărdĭ́ā, “heart”) + -ῐ́ᾱ (-ĭ́ā, suffix forming abstract nouns), equivalent to cardia + -ia.