The Collaborative International Dictionary of English v.0.48:

Esprit \Es`prit"\, n. [F. See Spirit.]
   Spirit.
   [1913 Webster]

   Esprit de corps, a French phrase much used by English
      writers to denote the common spirit pervading the members
      of a body or association of persons. It implies sympathy,
      enthusiasm, devotion, and jealous regard for the honor of
      the body as a whole.
      [1913 Webster]

WordNet (r) 3.0 (2006):

esprit
    n 1: liveliness of mind or spirit

Moby Thesaurus II by Grady Ward, 1.0:

246 Moby Thesaurus words for "esprit":
   Atticism, Vernunft, accord, accordance, acuity, acumen, acuteness,
   adroitness, affinity, agape, agile wit, agreement, amity,
   animal spirits, animation, aptitude, aptness, being,
   bipartisanship, black humor, bonds of harmony, bones, bosom, brain,
   braininess, brains, breast, brightness, brilliance, brio,
   brotherly love, burlesque, camaraderie, capersomeness, caricature,
   caritas, cement of friendship, charity, clear thinking, cleverness,
   coaction, coadjuvancy, coadministration, coagency, cochairmanship,
   codirectorship, collaboration, collaborativeness, collectivism,
   collusion, coltishness, comedy, commensalism, common effort,
   common enterprise, communalism, communion, communism,
   communitarianism, community, community of interests, compatibility,
   complicity, conception, concert, concord, concordance, concurrence,
   congeniality, cooperation, cooperativeness, correspondence,
   courage, dash, devotion, dexterity, discourse of reason,
   discursive reason, dry wit, duet, duumvirate, ecumenicalism,
   ecumenicism, ecumenism, elan, empathy, enthusiasm, esprit de corps,
   exuberance, farce, feeling of identity, fellow feeling, fellowship,
   fervor, flair, frictionlessness, friskiness, frolicsomeness,
   gaiety, gamesomeness, gayness, genius, giftedness, gifts,
   good vibes, good vibrations, gray matter, gusto, guts,
   happy family, harmony, head, headpiece, heart, heart of hearts,
   heartiness, heartstrings, humor, identity, inmost heart,
   inmost soul, innermost being, intellect, intellection,
   intellectual faculty, intelligence, irony, joining of forces,
   joint effort, joint operation, keen-wittedness, keenness, kinship,
   lampoon, life, like-mindedness, liveliness, love, loyalty,
   mass action, mens, mental alertness, mental capacity, mentality,
   mercurial mind, mettle, mind, morale, mutual assistance, mutualism,
   mutuality, native cleverness, nimble mind, nimble wit,
   nimble-wittedness, nimbleness, nous, octet, oneness, oomph, parody,
   passion, peace, piss and vinegar, playfulness, pleasantry, pooling,
   pooling of resources, power of reason, pretty wit, psyche,
   pulling together, quartet, quick parts, quick thinking, quick wit,
   quick-wittedness, quickness, quintet, rapport, rapprochement,
   ratio, rationality, ready wit, reason, reasoning,
   reasoning faculty, reciprocity, rollicksomeness, rompishness, salt,
   sarcasm, satire, savor of wit, savvy, secret places, septet,
   sextet, sharing, sharp-wittedness, sharpness, skittishness,
   slapstick, slapstick humor, smartness, smarts, solidarity, soul,
   spirit, spiritedness, spirits, sportiveness, sprightliness,
   sprightly wit, squib, subtle wit, symbiosis, sympathy, symphony,
   synergism, synergy, talent, team spirit, teamwork, tenacity,
   travesty, trio, triumvirate, troika, understanding, union, unison,
   united action, unity, verve, vigor, vim, viscera, visual humor,
   vitality, vivacity, wit, zest, zestfulness, zing, zip



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

ESPRIT
       European Strategic Program of Research and Development in
Information Technology (Europe)


The Free On-line Dictionary of Computing (30 December 2018):

European Strategic Programme for Research in Information Technology
ESPRIT

    (ESPRIT) A funding programme to develop Information
   Technology in the European Economic Communities.  Superseded
   by Framework 4.

   (1996-05-13)