tessellating
Webster's Dictionary (GCIDE)
Tessellate \Tes"sel*late\, v. t. [imp. & p. p. Tessellated; p. pr. & vb. n. Tessellating.] [L. tessellatus tessellated. See Tessellar.] To form into squares or checkers; to lay with checkered work. [1913 Webster]
The floors are sometimes of wood, tessellated after the fashion of France. --Macaulay. [1913 Webster]