There are 11 words that start with 'decam'.
| decamp | decamps |
| decamped | decameter |
| decamping | decameters |
| decametric | decampment |
| decampments | decamethonium |
| decamethoniums | |
Note: These 11 words that start with 'decam' are found from the USA & Canada version of the tournament Scrabble word list.