Source : Webster's Revised Unabridged Dictionary (1913)

Edgeways \Edge"ways\, Edgewise \Edge"wise\, adv.
   With the edge towards anything; in the direction of the edge.

         Glad to get in a word, as they say, edgeways. --Sir W.
                                                  Scott.

Source : WordNet®

edgewise
     adv 1: with the edge forward or on, by, or toward the edge; "he
            sawed the board edgeways"; "held it edgewise" [syn: {edgeways}]
     2: as if by an edge; barely; "I could not get a word in
        edgewise" [syn: {edgeways}]