I. ˈgəstə̇lē, -li, Scot “ or ˈgüs- adverb
Etymology: gusty (II) + -ly
: with great relish
picked up a long wrinkled-looking sausage … then crunched on it gustily — P.E.Deutschman
II. ˈgəs- adverb
Etymology: gusty (I) + -ly
: in gusts
the wind blew gustily
: in a manner suggesting a gust
she sighed gustily