Intercessio, onis, f. g. Verbale. quam vulgò oppositionem vocamus. Cæs. Cic.A prohibition: a withstanding: a gainesaying by his voice negatiue: a stepping in to lette a matter that it proceede not.
Lewis and Short: Latin dictionary
intercessĭo, ōnis, f. [intercedo], a coming between, intervention.I.Lit.: testium, Gell. 14, 2, 7.— II.Transf.A.An interposition, a becoming surety for one: mea intercessio parata et est et fuit, Cic. Att. 1, 4: intercessiones pecuniarum in coitionibus candidatorum, id. Par. 6, 2.— B.A fulfilment, performance, Cod. Just. 12, 22, 1; Cod. Th. 6, 28, 4. — C.An intervention, interposition, protest on the part of a tribune of the people, who annulled a decree of the Senate by his veto: cum intercessio stultitiam intercessoris significatura sit, non rem impeditura, Cic. Agr. 2, 12: intercessionem liberam relinquere, Caes. B. C. 1, 7: remittere, Liv. 38, 54: intercessionem facere pro aliquo, Gell. 7, 19: intercessionem suam interponere, Val. Max. 6, 1, 10.