There are 12 words that start with 'benig'.
| benign | benignly | 
| benighted | benignant | 
| benignity | benignancy | 
| benightedly | benignantly | 
| benignities | benignancies | 
| benightedness | benightednesses | 
Note: These 12 words that start with 'benig' are found from the USA & Canada version of the tournament Scrabble word list.