There are 17 words that start with 'umbe'.
| umbel | umber |
| umbels | umbers |
| umbeled | umbered |
| umbellar | umbelled |
| umbellet | umbering |
| umbellate | umbellets |
| umbellule | umbellifer |
| umbellules | umbellifers |
| umbelliferous | |
Note: These 17 words that start with 'umbe' are found from the USA & Canada version of the tournament Scrabble word list.