Ayahuasca is the hispanicized (traditional) spelling of a word in the Quechuan languages, which are spoken in the Andean states of Ecuador, Bolivia, Peru, and Colombia—speakers of Quechuan languages who use the modern Alvarado orthography spell it ayawaska. This word refers both to the liana Banisteriopsis caapi, and to the brew prepared from it. In the Quechua languages, aya means “spirit, soul”, or “corpse, dead body”, and waska means “rope” or “woody vine”, “liana“. The word ayahuasca has been variously translated as “liana of the soul”, “liana of the dead”, and “spirit liana”. It is also referred to as “la purge” due to the belief that it cures the soul, offering a deep introspective journey that allows the user to examine their emotions and ways of thinking.
In Brazil, the brew and the liana are informally called either caapi or cipó; the latter is the Portuguese word for liana (or woody climbing vine). In the União do Vegetal of Brazil, an organised spiritual tradition in which people drink ayahuasca, the brew is prepared exclusively from B. caapi and Psychotria viridis. Adherents of União do Vegetal call this brew hoasca or vegetal; Brazilian Yawanawa call the brew “uní”.