barring(n = noun.act) blackball - the act of excluding someone by a negative vote or veto;
is a kind of ejection, exclusion, expulsion, riddance

   the act of excluding someone by a negative vote or veto. [WordNet 1.5]

barring, prep. except, not including.

Etymology:
BAR(1) + -ING(2)

N  nonaddition, subtraction, subtraction, subduction, deduction, retrenchment, removal, withdrawal, ablation, sublation, abstraction, garbling mutilation, detruncation, amputation, abscission, excision, recision, curtailment, minuend, subtrahend, decrease, abrasion, subtracted, subtractive, in deduction, less, short of, minus, without, except, except for, excepting, with the exception of, barring, save, exclusive of, save and except, with a reservation, not counting, if one doesn't count.

N  exclusion, nonadmission, omission, exception, rejection, repudiation, exile, noninclusion, preclusion, prohibition, separation, segregation, seposition, elimination, expulsion, cofferdam, excluding, exclusive, excluded, unrecounted, not included in, inadmissible, exclusive of, barring, except, with the exception of, save, bating, exclusion, seclusion, exclusion, seclusion, privacy, retirement, reclusion, recess, snugness, delitescence, rustication, rus in urbe, solitude, solitariness, isolation, loneliness, estrangement from the world, voluntary exile, aloofness, cell, hermitage, convent, sanctum sanctorum, depopulation, desertion, desolation, wilderness, howling wilderness, rotten borough, Old Sarum, exclusion, excommunication, banishment, exile, ostracism, proscription, cut, cut direct, dead cut, inhospitality, inhospitableness, dissociability, domesticity, Darby and Joan, recluse, hermit, eremite, cenobite, anchoret, anchorite, Simon Stylites, troglodyte, Timon of Athens, Santon, solitaire, ruralist, disciple of Zimmermann, closet cynic, Diogenes, outcast, Pariah, castaway, pilgarlic, wastrel, foundling, wilding, secluded, sequestered, retired, delitescent, private, bye, out of the world, out of the way, the world forgetting by the world forgot, snug, domestic, stay-at-home, unsociable, unsocial, dissocial, inhospitable, cynical, inconversable, unclubbable, sauvage, troglodytic, solitary, lonely, lonesome, isolated, single, estranged, unfrequented, uninhabitable, uninhabited, tenantless, abandoned, deserted, deserted in one's utmost need, unfriended, kithless, friendless, homeless, lorn, forlorn, desolate, unvisited, unintroduced, uninvited, unwelcome, under a cloud, left to shift for oneself, derelict, outcast, banished, noli me tangere, among them but not of them, and homeless near a thousand homes I stood, far from the madding crowd's ignoble strife, makes a solitude and calls it peace, magna civitas magna solitudo, never less alone than when alone, O sacred solitude! divine retreat!.