There are 440 11-letter words that start with 'de'.
Note: These 440 11-letter words that start with 'de' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with dec, des, def, dem, dep, del, det, den, dea, dev, der, deb, deg, dee, dei, dew, deh, deo, deu, ded, dex, dek, dej, dez, dey.
3-letter words start with 'de' (9)