The Collaborative International Dictionary of English v.0.48:
Shay \Shay\, n. A chaise. [Prov. Eng. & Local, U.S.] [1913 Webster]WordNet (r) 3.0 (2006):
shay n 1: a carriage consisting of two wheels and a calash top; drawn by a single horse [syn: chaise, shay]