13-Letter Words End with 'tis'

There are 7 13-letter words that end with 'tis'.

antiarthritis	cholecystitis
enterocolitis	lymphadenitis
poliomyelitis	osteomyelitis
tenosynovitis

Note: These 7 13-letter words that end with 'tis' are found from the USA & Canada version of the tournament Scrabble word list.

Also see words end with itis, atis, ttis, utis, ntis, otis, stis, etis, rtis, ftis, ktis, ytis.

5-letter words end with 'tis' (10)
6-letter words end with 'tis' (13)
7-letter words end with 'tis' (13)
8-letter words end with 'tis' (33)
9-letter words end with 'tis' (30)
10-letter words end with 'tis' (20)
11-letter words end with 'tis' (13)
12-letter words end with 'tis' (9)
13-letter words end with 'tis' (7)
14-letter words end with 'tis' (5)
15-letter words end with 'tis' (1)