Nicknames for Decimus
10 nicknames, sorted by where they actually get used.
Office-safe
Dec
formal
Mus
formal
Playground-friendly
Deci
casual
Deciy
casual
Deciie
casual
Musy
casual
Musie
casual
Dey
casual
Deie
casual
Family nicknames
Deckins
endearment
Decimus carries 10 common short forms — Dec, Deci, and Deciy. The list splits into 2 office-safe picks and 7 playground-friendly options so you can match the moment.