Lewis & Short

sup-planto (subpl-), āvi, ātum, 1, v. a. [planta], to trip up one’s heels, to throw down, ὑποσκελίζω.

  1. I. Lit.: supplantare dictum est pedem supponere, Lucilius: supplantare aiunt Graeci, Non. 36, 3: qui stadium currit, supplantare eum, quīcum certet nullo modo debet, * Cic. Off. 3, 10, 42: athleta supplantatus, Sen. Ep. 13, 2.
  2. II. Transf., in gen., to throw down, throw to the ground, overthrow: vitem, Col. Arb. 7, 4: vites in terram, Plin. 17, 23, 35, § 212: uvas, id. 17, 22, 35, § 192: fulturas (vehemens aquae vis), Vitr. 10, 22.
    Poet.: tenero supplantat verba palato, trips up, i. e. distorts, minces, Pers. 1, 35: judicium, to overturn, Quint. Decl. 7.