cardio-

car·dio-
UK/ˈkɑː.dɪ.əʊ̯-/UK[ˈkʰɑː.dɪ.əʊ̯-]US/ˈkɑɹ.di.oʊ̯-/US[ˈkʰɑɹ.di.o̯ʊ-]

prefix

Relating to the heart.

OriginAncient Greek καρδία (kardía) ← Proto-Hellenic *kərdíyā ← Proto-Indo-European *ḱr̥díyeh₂ →
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Meanings

prefix
  1. Relating to the heart.
  2. Relating to the cardia of the stomach.

Origin

  1. Proto-Indo-European*ḱerd-
  2. Proto-Indo-European*ḱḗr
  3. Proto-Indo-European*ḱr̥díyeh₂
  4. Proto-Hellenic*kərdíyā
  5. Ancient Greekκαρδία (kardía)
  6. Englishcardio-

Learned borrowing from Ancient Greek καρδία (kardía, “heart”).

More words from Ancient Greek

Full word history & related roots →

Translations

Catalan cardio-
  • cardio-pertaining to the heart
Czech kardio-
  • kardio-pertaining to the heart
Dutch cardio-
  • cardio-pertaining to the heart
Finnish sydän-
  • sydän-pertaining to the heart
French cardio-
  • cardio-pertaining to the heart
German kardio-
  • kardio-pertaining to the heart
Italian cardio-
  • cardio-pertaining to the heart
Polish kardio-
  • kardio-pertaining to the heart
Portuguese cardio-
  • cardio-pertaining to the heart
Romanian cardio-
  • cardio-pertaining to the heart
Spanish cardio-
  • cardio-pertaining to the heart
Turkish kardiyo-
  • kardiyo-pertaining to the heart
Cite this entry
APA

cardio-. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/cardio-

MLA

“cardio-.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/cardio-. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “cardio-,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/cardio-.

Source: cardio- on Wiktionary, CC BY-SA 4.0.