aequipondium

From aequus +‎ pondus +‎ -ium.

aequipondium n (genitive aequipondiī or aequipondī); second declension

1. counterpoise, counterweight

Second-declension noun (neuter).

¹Found in older Latin (until the Augustan Age).

• “aequipondium”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• aequipondium in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.
• “aequipondium”, in Harry Thurston Peck, editor (1898), Harper’s Dictionary of Classical Antiquities, New York: Harper & Brothers
• “aequipondium”, in William Smith et al., editor (1890), A Dictionary of Greek and Roman Antiquities, London: William Wayte. G. E. Marindin