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 History of this Word

"octo" is from "okto" (eight) spoken by people of Greece starting about 1000 B.C.


In this sense, it is a word added to another word to form a new word.

More words with this prefix,

Words related to this meaning

grammar is modifier

"octo-" is a type of prefix


A prefix added to the start of a word. Indicates that "eight" modifies the word. Created to expand meanings. Can be used with many words to form new words.

Examples of how the word is used

octo- illustration I am trying to figure out the square footage of an octagon-shaped house.
octo- illustration A friend, who started work as a doctor here, was shocked at the number of perfectly healthy octogenarians who came to see her.