There are 17 12-letter words that start with 'del'.
Note: These 17 12-letter words that start with 'del' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with deli, dele, delu, dela, delo, delt, delf, delv, delp, dell, dels.
4-letter words start with 'del' (6)