octa-


a combining form occurring in loanwords from Greek and Latin, where it meant “eight” (octagon; octastyle), on this model, used in the formation of compound words, and in chemical terms specialized to mean “having eight atoms” (octavalent).

QUIZZES

Fend Off Sciolism With This Word Of The Day Quiz
Are you the Cinderella of this week’s quiz? Test your memory on the words and definitions from March 23–29.
Question 1 of 7
schlep
Also oct-, octo-.

Origin of octa-

< Greek okta-, combining form of oktṓ eight
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for octa

  • The incautious sovereign having assented to this, Octa and Ebusa arrived with forty ships.

  • After this Eosa and the rest that fled, being encouraged by Octa's success, came also, and were admitted to the same favour.

British Dictionary definitions for octa (1 of 2)

octa
/ (ˈɒktə) /

noun

a variant spelling of okta

British Dictionary definitions for octa (2 of 2)

octa-

combining form

a variant of octo-
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012