The Collaborative International Dictionary of English v.0.48:

Endow \En*dow"\, v. t. [imp. & p. p. Endowed; p. pr. & vb. n.
   Endowing.] [OF. endouer; pref. en- (L. in) + F. douer to
   endow, L. dotare. See Dower, and cf. 2d Endue.]
   1. To furnish with money or its equivalent, as a permanent
      fund for support; to make pecuniary provision for; to
      settle an income upon; especially, to furnish with dower;
      as, to endow a wife; to endow a public institution.
      [1913 Webster]

            Endowing hospitals and almshouses.    --Bp.
                                                  Stillingfleet.
      [1913 Webster]

   2. To enrich or furnish with anything of the nature of a gift
      (as a quality or faculty); -- followed by with, rarely by
      of; as, man is endowed by his Maker with reason; to endow
      with privileges or benefits.
      [1913 Webster]

WordNet (r) 3.0 (2006):

endowed
    adj 1: provided or supplied or equipped with (especially as by
           inheritance or nature); "a well-endowed college";
           "endowed with good eyesight"; "endowed by their Creator
           with certain unalienable rights" [ant: unendowed]

Moby Thesaurus II by Grady Ward, 1.0:

47 Moby Thesaurus words for "endowed":
   accoutered, armed, blessed with, born for, catered, cut out for,
   dotal, dower, dowered, dowry, enfeoffed, equipped, fitted,
   fitted out, furnished, gifted, having, having and holding, heeled,
   holding, in possession of, invested, landed, landholding,
   landowning, made for, master of, occupying, outfitted, owning,
   pensionary, possessed of, possessing, prepared, propertied,
   property-owning, provided, purveyed, rigged, seized of,
   stipendiary, subsidiary, supplied, talented, tenured, with a flair,
   worth