Source : Webster's Revised Unabridged Dictionary (1913)

Doit \Doit\, n. [D. duit, Icel. pveit, prop., a piece cut off.
   See {Thwaite} a piece of ground, {Thwite}.]
   1. A small Dutch coin, worth about half a farthing; also, a
      similar small coin once used in Scotland; hence, any small
      piece of money. --Shak.

   2. A thing of small value; as, I care not a doit.