The old picture of a hustler is a wizened guy, standing on a street corner selling some assortment of unsavory goods.
As one wizened figure in The Dragon-Song Chronicle puts it, “Magic is not the only power in this world.”
She sighs exasperatedly and dispenses surprisingly lucid advice like a wizened old veteran.
Old English wisnian, weosnian "to wither," cognate with Old Norse visna, Old High German wesanen "to dry up, shrivel, wither;" German verwesen "to decay, rot." Related: Wizened.