There are 15 words that end with 'rrer'.
burrer | marrer | spurrer |
stirrer | abhorrer | deferrer |
demurrer | deterrer | inferrer |
shnorrer | referrer | conferrer |
schnorrer | preferrer | transferrer |
Note: These 15 words that end with 'rrer' are found from the USA & Canada version of the tournament Scrabble word list.