ani

The word 'ani' entered English in the early 19th century as a direct borrowing from Portuguese, which itself had adopted it from Tupi, a language family of Brazil. The term is purely imitative, derived from the bird's distinctive, repetitive cry. This etymological path from New World indigenous languages via Portuguese exemplifies how local fauna names were integrated into European scientific and common vocabularies through exploration and colonization. The word's form has remained stable, preserving its onomatopoeic origin as a simple, unanalyzable unit in English.

This word is a simplex loanword. It originates from a Tupi (indigenous Brazilian language) word, recorded as 'anú' in Portuguese contexts, which is an onomatopoeic imitation of the bird's call.