pessum

• (Classical Latin) IPA^(key): [ˈpɛs.sũː]
• (modern Italianate Ecclesiastical) IPA^(key): [ˈpɛs.sum]

From Proto-Italic *pessus from Proto-Indo-European *ped-tu-s, from *ped- (whence pēs); compare -tum (forming supine).

pessum (not comparable) (chiefly pre-classical, post-classical)

1. to the bottom, to the lowest part; especially in:

   pessum (ab)īre ― to go to the bottom; to sink; to die

   pessum dare ― to do away with, put an end to; to make someone or something sink to

   • c. 206 BCE – 188 BCE, Plautus, Mercator 5.2.6–7:

     eorum inventu res simitu pessumas pessum dedi,
     iram, inimicitiam, maerorem, lacrumas, exilium, inopiam

     (please add an English translation of this quotation)

Borrowed from Ancient Greek πεσσός (pessós).

• pessus

pessum n (genitive pessī); second declension

1. a pessary

Second-declension noun (neuter).

• pessārium
• pessulum

• “pessum”, in Charlton T. Lewis and Charles Short (1879), A Latin Dictionary, Oxford: Clarendon Press
• “pessum”, in Gaffiot, Félix (1934), Dictionnaire illustré latin-français, Hachette.