There are 16 words that start with 'hypog'.
| hypogea | hypogeal | 
| hypogean | hypogene | 
| hypogeum | hypogyny | 
| hypogeous | hypogynies | 
| hypogynous | hypogastric | 
| hypoglossal | hypoglossals | 
| hypoglycemia | hypoglycemic | 
| hypoglycemias | hypoglycemics | 
Note: These 16 words that start with 'hypog' are found from the USA & Canada version of the tournament Scrabble word list.