[syn: edgeways, edgewise]
The Collaborative International Dictionary of English v.0.48:
Edgeways \Edge"ways\, Edgewise \Edge"wise\, adv.
   With the edge towards anything; in the direction of the edge.
   [1913 Webster]
   to get a word in edgewise to succeed in expressing an
      opinion in a conversation, in spite of constant speech
      from another or others; as, he talked incessantly and I
      couldn't get a word in edgewise.
   Note: the form edgeways is now uncommon.
         [PJC]
               Glad to get in a word, as they say, edgeways.
                                                  --Sir W.
                                                  Scott.
         [1913 Webster]
WordNet (r) 3.0 (2006):
edgeways
    adv 1: as if by an edge; barely; "I could not get a word in
           edgewise" [syn: edgewise, edgeways]
    2: with the edge forward or on, by, or toward the edge; "he
       sawed the board edgeways"; "held it edgewise" [syn:
       edgeways, edgewise]