Source : Webster's Revised Unabridged Dictionary (1913)

Tabby \Tab"by\, v. t. [imp. & p. p. {Tabbied}; p. pr. & vb. n.
   {Tabbying}.]
   To water; to cause to look wavy, by the process of
   calendering; to calender; as, to tabby silk, mohair, ribbon,
   etc.