quillay

== English == === Noun === quillay (plural quillays) The soapbark tree, Quillaja saponaria; the bark of this tree used as a source of saponin == Spanish == === Etymology === Borrowed from Mapudungun küllay. === Noun === quillay m (plural quillayes) soapbark Quillaja saponaria ==== Descendants ==== → English: quillai === Further reading === “quillay”, 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