a. [f. L. Tarpei-us, or ad. L. Tarpeiān-us adj., f. proper name Tarpeius or Tarpeia.] Denoting a rock-face on the Capitoline Hill at Rome over which persons convicted of treason to the state were thrown headlong.

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1600.  Marlowe, Lucan, I.

                  Thou thunderer that guardst
Roomes mighty walles built on Tarpeian rocke.

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1607.  Shaks., Cor., III. i. 213. Beare him toth’ Rock Tarpeian, and from thence Into destruction cast him. Ibid., III. iii. 88. Let them pronounce the steepe Tarpeian death.

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1671.  Milton, P. R., IV. 47.

                There the Capitol thou seest
Above the rest lifting his stately head
On the Tarpeian rock, her Cittadel
Impregnable.

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1746.  Francis, trans. Hor. Sat. I. vi. 51. From the Tarpeian rock’s tremendous height, Or to the hangman Cadmus give their fate.

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1843.  Macaulay, Horatius, xvi. Now, from the rock Tarpeian, Could the wan burghers spy The line of blazing villages.

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1921.  Kenneth Campbell, John Masterson, xi. 6.

        Long, long ago some troglodyte,
… hurled the ape
Tarpeian over.

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