The Collaborative International Dictionary of English v.0.48:

-ard \-ard\, -art \-art\
   The termination of many English words; as, coward, reynard,
   drunkard, mostly from the French, in which language this
   ending is of German origin, being orig. the same word as
   English hard. It usually has the sense of one who has to a
   high or excessive degree the quality expressed by the root;
   as, braggart, sluggard.
   [1913 Webster]

V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

ARD
       Apple Remote Desktop (Apple, Macintosh)


Easton's 1897 Bible Dictionary:

Ard
   descent, a grandson of Benjamin (Num. 26:38-40). In 1 Chr. 8:3
   he is called Addar. His descendants are mentioned in Num. 26:40.


Hitchcock's Bible Names Dictionary (late 1800's):

Ard, one that commands; he that descends