The Collaborative International Dictionary of English v.0.48:

Checky \Check"y\ (ch[e^]k"[y^]), a. (Her.)
   Divided into small alternating squares of two tinctures; --
   said of the field or of an armorial bearing. [Written also
   checquy, chequy.]
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Chequy \Cheq"uy\, n. (Her.)
   Same as Checky.
   [1913 Webster]