There are 4 14-letter words that start with 'spl'.
splendidnesses | splenectomized |
splenectomizes | splenomegalies |
Note: These 4 14-letter words that start with 'spl' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with sple, spla, spli, splo, splu.
5-letter words start with 'spl' (3)