There are 14 words that start with 'botto'.
| bottom | bottoms |
| bottomed | bottomer |
| bottomry | bottomers |
| bottoming | bottomland |
| bottomless | bottommost |
| bottomries | bottomlands |
| bottomlessly | bottomlessness |
Note: These 14 words that start with 'botto' are found from the USA & Canada version of the tournament Scrabble word list.