ERGO Meaning of ERGO in English er ‧ go /ˈɜːɡəʊ $ ˈɜːrɡoʊ/ BrE AmE adverb formal [sentence adverb] [ Date: 1300-1400 ; Language: Latin ] therefore Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012