# cardiac

> English word · Adjective · IPA /ˈkɑːdɪæk/ · frequency rank #9,022

## Definitions
1. Pertaining to the heart.
2. Pertaining to the cardia of the stomach; cardial (cardial is the usual adjective in this sense).
3. Exciting action in the heart, through the medium of the stomach; cordial; stimulant.

## Etymology
From Middle French cardiaque, from Latin cardiacus, from Ancient Greek καρδιακός (kardiakós, “relating to the heart”), from καρδία (kardía, “heart”); by surface analysis, cardi- + -ac.

## Easily confused with
- **Cardiff** (https://plainspell.com/en/vs/cardiac-vs-cardiff)
- **cordial** (https://plainspell.com/en/vs/cardiac-vs-cordial)
- **cardinal** (https://plainspell.com/en/vs/cardiac-vs-cardinal)
- **cardigan** (https://plainspell.com/en/vs/cardiac-vs-cardigan)
- **Cardi** (https://plainspell.com/en/vs/cardi-vs-cardiac)

## Common misspellings (10)
`acrdiac`, `cadriac`, `cardaic`, `carddiac`, `cardiacc`, `cardica`, `caridac`, `carrdiac`, `ccardiac`, `cradiac`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/cardiac