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]