The Collaborative International Dictionary of English v.0.48:
Fitly \Fit"ly\, adv. In a fit manner; suitably; properly; conveniently; as, a maxim fitly applied. [1913 Webster]WordNet (r) 3.0 (2006):
fitly adv 1: in an appropriate manner; "he was appropriately dressed" [syn: appropriately, suitably, fittingly, befittingly, fitly] [ant: inappropriately, unsuitably]