Type Word & Element Usage Old Germanic (Hypothetical) Meaning & History Germanic word meaning "father" [1][2]. Related ItemsDetails Other Languages & Culturesatta(Gothic) atto(Old High German) Same Spellingatto Sources & References Kroonen, Guus. Etymological Dictionary of Proto-Germanic. Brill, 2013, page 39. Orel, Vladimir. A Handbook of Germanic Etymology. Brill, 2003, page 27.