octa-

combining form

variants or octo- or less commonly oct-

: eight

octane

octoroon

Word History

Etymology

Greek okta-, oktō-, okt- (from oktō) & Latin octo-, oct-, from octo — more at eight

Kids Definition

octa-

combining form

variants or octo- also oct-

: eight

Etymology

derived from Greek oktō and Latin octo, both meaning "eight"