There are 11 words that start with 'excur'.
| excursus | excurrent | 
| excursion | excursive | 
| excursions | excursuses | 
| excursively | excursionist | 
| excursionists | excursiveness | 
| excursivenesses | |
Note: These 11 words that start with 'excur' are found from the USA & Canada version of the tournament Scrabble word list.