Source : Webster's Revised Unabridged Dictionary (1913)

Lauder \Laud"er\, n.
   One who lauds.

Source : WordNet®

Lauder
     n 1: Scottish ballad singer and music hall comedian (1870-1950)
          [syn: {Harry Lauder}, {Sir Harry MacLennan Lauder}]
     2: someone who communicates high praise [syn: {laudator}, {extoller}]