Otto
来自Big Physics
wiktionary
From German Otto, short form of compound names beginning with Proto-Germanic *audaz(“wealth, riches”) (cognate of EnglishEd- in Edgar, Edmund, Edward, etc.).
etymonline
Otto
German given name and surname, from Old High German Odo, Udo, from Proto-Germanic *aud- "wealth, prosperity," corresponding to Old English ead (as in Edward, Edith, etc.). Related: Ottonian, in reference to the East Frankish dynasty of the Holy Roman Empire founded 962 by Otto I.
