There are 18 12-letter words that start with 'endo'.
Note: These 18 12-letter words that start with 'endo' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with endos, endop, endoc, endom, endot, endor, endog, endod, endow, endol, endob, endoe, endon, endoz.
5-letter words start with 'endo' (1)