There are 13 14-letter words that end with 'rities'.
avascularities | avuncularities |
binocularities | collinearities |
coprosperities | irregularities |
noncelebrities | nonlinearities |
posteriorities | overmaturities |
subsidiarities | unpopularities |
vesicularities | |
Note: These 13 14-letter words that end with 'rities' are found from the USA & Canada version of the tournament Scrabble word list.