The Collaborative International Dictionary of English v.0.48:

Inchmeal \Inch"meal`\, adv.
   Little by little; gradually.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Inchmeal \Inch"meal`\, n. [See Meal a part, and cf.
   Piecemeal.]
   A piece an inch long.
   [1913 Webster]

   By inchmeal, by small degrees; by inches. --Shak.
      [1913 Webster]