54%RatingSave Gender Masculine Usage Ancient Roman Pronounced Pron. DEH-kee-moos [key·IPA] Meaning & History Roman praenomen, or given name, meaning "tenth" in Latin. Related NamesFamily Tree·Details Feminine FormDecima People think this name isRate·Details classic mature formal upper class urban strong strange complex serious nerdy Categories birth order, isograms, Latin words, numeric meanings, praenomina, Thomas Hardy characters