There are 20 9-letter words that start with 'der'.
| deraigned | derailing | derangers | 
| deranging | deratting | derelicts | 
| derepress | deringers | derisible | 
| derisions | derivable | derivates | 
| dermatoid | dermatome | dermestid | 
| derogated | derogates | derrieres | 
| derringer | dervishes | |
Note: These 20 9-letter words that start with 'der' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with deri, dera, derm, dere, derr, dero, derb, derv, dern.
4-letter words start with 'der' (2)