Word.ws English Dictionary

octo-

octo- prefix: eight.

Prefix

octo-

  1. eight
    Synonyms:
    octa-, ogdo-, -oct-

Synonyms of octo-

Origin of octo-

From Ancient Greek ὀκτώ (oktṓ, “eight”) and Latin octō (“eight”).

Questions about octo-

What does octo- mean?
Octo- means eight.
What part of speech is octo-?
Octo- is a prefix.

Words near octo- in the dictionary

  1. Octlantis
  2. octlet
  3. octlets
  4. octli
  5. octo
  6. octo-
  7. octo-champ
  8. octo-champs
  9. octoad
  10. octoads
  11. octoalloy

Source and license

Adapted from Wiktionary: octo- (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.

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