There are 13 13-letter words that start with 'deca'.
| decaffeinated | decalcomanias |
| decamethonium | decapitations |
| decarbonating | decarbonation |
| decarbonizers | decarbonizing |
| decarboxylase | decarboxylate |
| decarburizing | decasyllabics |
| decasyllables | |
Note: These 13 13-letter words that start with 'deca' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with decar, decal, decap, decam, decan, decad, decay, decag, decas, decat, decaf, decah.
5-letter words start with 'deca' (3)