There are 36 7-letter words that start with 'pur'.
Note: These 36 7-letter words that start with 'pur' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with purp, puri, purs, purl, purg, pure, purv, purc, purf, purr, purt, puru, purb, purd, pura, puro.
4-letter words start with 'pur' (5)