acai (English)
Where does "acai" come from?
The word 'acai' originates from the Proto-Tupi-Guarani term *wat͡saʔi, a language family native to South America. It entered the English language as a loanword via Brazilian Portuguese, where it refers both to the Euterpe palm tree and its distinctive dark purple fruit.
Full etymology tree
- acai (English), 'Any of several South American palms, of the genus Euterpe, having a dark purple drupe.'
- borrowed açaí (Portuguese), 'acai palm (Euterpe oleracea)'
- inherited *wat͡saʔi (Proto-Tupi-Guarani), 'acai'
- borrowed açaí (Portuguese), 'acai palm (Euterpe oleracea)'
Updated June 2026
Etymology data from Wiktionary, CC BY-SA 4.0 · About Miraris