Word Pronunciation & Dictionary

octo-

Word Rarity Very rare

Frequency: Zipf frequency 2.31 in modern English

Syllables: oc-to-
IPA

6

Scrabble Score

4

Letters

3

Syllables

3

Unique Chars

Meaning

prefix

Etymology

Etymology tree Proto-Indo-European *oḱtṓw Proto-Hellenic *oktṓ Ancient Greek ὀκτώ (oktṓ)bor. Proto-Indo-European *oḱtṓw Proto-Italic *oktō Latin octōbor. English octo- From Ancient Greek ὀκτώ (oktṓ, “eight”) and Latin octō (“eight”).

Inflected Forms

before a vowel oct- (canonical)

Frequently Paired Words

October octogenarian Octomom octopus octoroon octothorpe

Synonyms

octa- ogdo- -oct-

Questions

What does octo- mean?: eight
Where does octo- come from?: Etymology tree Proto-Indo-European *oḱtṓw Proto-Hellenic *oktṓ Ancient Greek ὀκτώ (oktṓ)bor. Proto-Indo-European *oḱtṓw Proto-Italic *oktō Latin octōbor. English octo- From Ancient Greek ὀκτώ (oktṓ, “eight”) and Latin octō (“eight”).

How to pronounce octo-

Open the pronunciation page — Open the Speakur entry for “octo-”.
Read the phonetic spelling — Read the IPA spelling () so you know which sounds to aim for.
Play the audio — Click Play to hear reference audio for “octo-”.
Repeat and practice — Say “octo-” aloud, matching stress and vowels until it feels natural.