There are 14 words that start with 'preso'.
presoak | presold | presong |
presort | presoaks | presolve |
presorts | presoaked | presolved |
presolves | presorted | presoaking |
presolving | presorting | |
Note: These 14 words that start with 'preso' are found from the USA & Canada version of the tournament Scrabble word list.