Definition of "galliard"

Thus every Gibelline hath got his Guelf ;But Selden he's a Galliard by himself ;And well may be ; there's more Divines in him ,Than in all this their Jewish Sanhedrim ;

1647, John Cleveland, “The Mixt Assembly”, in The character of a London-diurnall with severall select poems, page 36 1647, keyboarded 1687, scanned

I will be answerable that this galliard meant but some St. Valentine's jest.

1828, Sir Walter Scott, The Fair Maid of Perth‎

He was still an old galliard, with white Buffalo Bill vandyke, and he swanked around, still healthy of flesh, in white suits, looking things over with big sex-amused eyes.

1953, Saul Bellow, chapter 5, in The Adventures of Augie March, New York: Viking Press