There are 12 words that start with 'derai'.
| derail | deraign | derails | 
| deraigns | derailed | deraigned | 
| derailing | deraigning | derailleur | 
| derailment | derailleurs | derailments | 
Note: These 12 words that start with 'derai' are found from the USA & Canada version of the tournament Scrabble word list.