The word "Puoy" is a non-standard spelling of the English word "puy" (pronounced /pweɪ/). This word has French origins and refers to a small volcanic hill or cone. The correct spelling of this word is often confused because the initial "p" sound is followed by the "u" and "y" letters which make a diphthong sound, thus making it difficult for some to spell it correctly. However, using IPA phonetic transcription, the correct spelling of "puy" can easily be represented: /pweɪ/.