There are 18 words that start with 'caes'.
| caesar | caesars | caesium |
| caestus | caesura | caesiums |
| caesurae | caesural | caesuras |
| caesuric | caesarean | caesarian |
| caesarism | caestuses | caesareans |
| caesarians | caesarisms | caespitose |
Note: These 18 words that start with 'caes' are found from the USA & Canada version of the tournament Scrabble word list.