The Collaborative International Dictionary of English v.0.48:

Haver \Ha"ver\ (h[a^]v"[~e]r), n.
   A possessor; a holder. --Shak.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Haver \Hav"er\, n. [D. haver; akin to G. haber.]
   The oat; oats. [Prov. Eng. & Scot.]
   [1913 Webster]

   Haver bread, oaten bread.

   Haver cake, oaten cake. --Piers Plowman.

   Haver grass, the wild oat.

   Haver meal, oatmeal.
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The Collaborative International Dictionary of English v.0.48:

Haver \Ha"ver\ (h[=a]"v[~e]r), v. i. [Etymol. uncertain.]
   To maunder; to talk foolishly; to chatter. [Scot.] --Sir W.
   Scott.
   [1913 Webster]