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):

endow
    v 1: give qualities or abilities to [syn: endow, indue,
         gift, empower, invest, endue]
    2: furnish with an endowment; "When she got married, she got
       dowered" [syn: endow, dower]

Moby Thesaurus II by Grady Ward, 1.0:

60 Moby Thesaurus words for "endow":
   accommodate, accord, afford, arm, authorize, award, back, bequeath,
   bestow, bless with, clothe, clothe with power, confer, contribute,
   deputize, donate, dower, empower, enable, endow with, endue,
   enhance, enrich, favor with, fill, fill up, finance, find, found,
   fund, furnish, give, grace with, grant, heighten, invest, keep,
   maintain, make available, make provision for, organize, prepare,
   present, promote, provide, provide for, recruit, replenish,
   settle on, settle upon, sponsor, stock, store, subscribe,
   subsidize, supply, support, vest, vest with, yield