"grossneffe" in English Großneffe {m} grandnephew Detailed translations for "grossneffe" der Großneffe{masculine} Großneffe grandnephew Da hinten lebt mein Großneffe Martin, Harriets Bruder. Source: opensubtitles.org Corpus by OPUS Request review Now, out there, my grandnephew Martin's house, Harriet's brother.