Douglas Harper's Etymology Dictionary
variant of gallivant. Related: Galavanted; galavanting.
Wikipedia
Galavant is an American musical comedy television series, created and written by Dan Fogelman, with music and lyrics by Alan Menken and Glenn Slater. Fogelman, Menken and Slater also serve as executive producers alongside Chris Koch, Kat Likkel and John Hoberg for ABC Studios. The series premiered on January 4, 2015, as the mid-season replacement for Once Upon a Time.
The first season consisted of eight episodes which aired over four weeks, with two episodes back-to-back each week. The series was renewed for a second season of ten episodes on May 7, 2015, which premiered on January 3, 2016, following the same airing scheme as the first season. On May 12, 2016, it was confirmed the series was canceled.