60%RatingSave Gender Masculine Usage German Pronounced Pron. DEET-helm [key·IPA] Meaning & History Derived from the Old German elements theod meaning "people" (Old High German diota, Old Frankish þeoda) and helm meaning "helmet, protection". Related NamesFamily Tree·Details Other Languages & CulturesTheothelm(Germanic) People think this name isRate·Details classic mature formal upper class natural wholesome strong strange complex serious Categories defence, people