Word.ws English Dictionary

tachy-

UK/ˌtæk.ɪ/US/ˌtæk.ɪ/

tachy- prefix: fast.

Prefix

tachy-

  1. fast
    Antonyms:
    brady-

Antonyms of tachy-

Forms of tachy-

alternative formtacho-

Origin of tachy-

Borrowed from Ancient Greek τᾰχῠ́ς (tăkhŭ́s, “swift”).

Words formed from tachy-

Questions about tachy-

What does tachy- mean?
Tachy- means fast.
What part of speech is tachy-?
Tachy- is a prefix.
How do you pronounce tachy-?
Tachy- is pronounced /ˌtæk.ɪ/ (UK).

Words near tachy- in the dictionary

  1. tachs
  2. tachs up
  3. tachuri
  4. tachuris
  5. tachy
  6. tachy-
  7. tachyarrhythmia
  8. tachyarrhythmias
  9. tachyarrhythmic
  10. tachyarrythmia
  11. tachyarrythmias

Source and license

Adapted from Wiktionary: tachy- (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Cite this entry: “tachy-.” Word.ws, https://word.ws/tachy-. Based on Wiktionary, CC BY-SA 4.0.