bienio

See also: biênio and biénio

Spanish

Etymology

Etymology tree

Proto-Indo-European *dwóh₁

Proto-Indo-European *dwi-

Proto-Italic *dwi-

Latin bi-

Proto-Indo-European *h₂et-

Proto-Indo-European *-nós

Proto-Indo-European *h₂etnós

Proto-Italic *atnos?

Latin annus

Proto-Indo-European *-is

Proto-Indo-European *-h₂

Proto-Indo-European *-ih₂der.?

Proto-Italic *-is

Latin -is

Latin biennis

Proto-Indo-European *-(i)yós

Proto-Italic *-ijos

Proto-Italic *-ios

Old Latin -ios

Latin -iusnom.

Latin -ium

Latin bienniumlbor.

Spanish bienio

Learned borrowing from Latin biennium.

Pronunciation

• IPA^(key): /ˈbjenjo/ [ˈbje.njo]
• Rhymes: -enjo
• Syllabification: bie‧nio

Noun

bienio m (plural bienios)

1. a period of two years; biennium

Related terms

• año

Further reading

• “bienio”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8.1, Royal Spanish Academy [Spanish: Real Academia Española], 15 December 2025