oito

Oito is the Portuguese word for the cardinal number eight. It is used to count objects, express quantities, and form numbers in everyday speech and writing, in both European Portuguese and Brazilian Portuguese as well as regional varieties.

Origin and cognates: The Portuguese oito derives from Latin octo, passing through Old Portuguese. It is cognate with Spanish ocho, Italian otto, and French huit, reflecting the shared Latin root behind the numerals of several Romance languages.

Grammar and usage: The ordinal form is oitavo (masculine) or oitava (feminine). In larger numbers, oito appears as a component—dezoito means eighteen, and oito mil denotes eight thousand. In compound numbers, the word often combines with others to create the final value.

Pronunciation and variation: Oito is pronounced roughly as oy-TOO in standard Brazilian and European Portuguese. Some regional variation exists in intonation, but the spelling oito remains constant across dialects.