It was Odin’s custom to go in disguise amongst giants and men. He went by many names in his wanderings: Vegtam, (“The Wayfarer"), Ygg (“The Terrible”), Vafhudr (“Wind”), and Blindi (“The Blind”), to name just a few.

“He alone knows who wanders wide, and has much experienced, by what disposition each man is ruled, who common sense possesses.”

-- The Poetic Eddas, The High One’s Lay