There are 12 words that start with 'eugen'.
| eugenia | eugenic | eugenol | 
| eugenias | eugenics | eugenist | 
| eugenols | eugenical | eugenists | 
| eugenicist | eugenically | eugenicists | 
Note: These 12 words that start with 'eugen' are found from the USA & Canada version of the tournament Scrabble word list.