swager/ˈswɛ(ː)ɡ(.)ə(ɹ)/Etymology* As a Dutch surname, from zwager (“son-in-law”). * As a German surname, Americanized from Schwager, with the same meaning as the Dutch word. Compare Swoger, Swagger.nameA surname.nounA brother-in-law.“Mehe swager wooner deh nowt at aw fer 'is kenship. 'e is a coont.”A tool that performs swaging.