Source : Webster's Revised Unabridged Dictionary (1913)

Dorr \Dorr\, n.
   The dorbeetle; also, a drone or an idler. See 1st {Dor}.
   --Robynson (More's Utopia).

Dorr \Dorr\, v. t.
   1. To deceive. [Obs.] See {Dor}, v. t.

   2. To deafen with noise. [Obs.] --Halliwell.