GANDER

[gan.der] n [ME, fr. OE gandra; akin to OE gos goose] (bef. 12c) 1: the adult male goose

2: simpleton

[2]gander n [prob. fr. [1]gander; fr. the outstretched neck of a person craning to look at something] (ca. 1914): look, glance "take a ~"