The Collaborative International Dictionary of English v.0.48:

Querimonious \Quer`i*mo"ni*ous\, a. [L. querimonia a complaint,
   fr. queri to complain. See Querulous.]
   Complaining; querulous; apt to complain. --
   Quer`i*mo"ni*ous*ly, adv. -- Quer`i*mo"ni*ous*ness, n.
   [1913 Webster]