Checquy.

Chambers's Encyclopaedia, Volume 3: Catarrh to Dion, p. 140

Checquy. or CHECKY, in Heraldry, a term applied to a field or charge divided into small squares by transverse perpendicular and horizontal lines. Checquy or and azure is the coat of Vermandois in France, and of Warren, Earl of Surrey, in England. The well-known coat of the Scottish family of

Two heraldic shields. The left shield, labeled 'Checquy', is divided into a grid of small squares. The right shield, labeled 'Fess Checquy', has a horizontal band (fess) across the middle, with the area above and below the band filled with a grid of small squares.
Two heraldic shields. The left shield, labeled 'Checquy', is divided into a grid of small squares. The right shield, labeled 'Fess Checquy', has a horizontal band (fess) across the middle, with the area above and below the band filled with a grid of small squares.

Fess Checquy.

Stewart, or, a fess checquy azure and argent, is allusive to the checkers of the Steward's board, by which money computations were in old times made.

Source scan(s): p. 0149