complementum
From LSJ
Τοὺς δούλους ἔταξεν ὡρισμένου νομίσματος ὁμιλεῖν ταῖς θεραπαινίσιν → He arranged for his male slaves to have sex with female slaves at a fixed price (Plutarch, Life of Cato the Elder 21.2)
Latin > English (Lewis & Short)
complēmentum: i, n. compleo,
I that which fills up or completes, a complement (rare; only fig.): numerorum (inania quaedam verba), * Cic. Or. 69, 230: omnium accusationum, that gives them their full weight, Tac. A. 3, 38: accusationis, Cod. Th. 9, 24, 3.
Latin > French (Gaffiot 2016)
complēmentum,¹⁶ ī, n. (compleo), ce qui complète, complément : Cic. Or. 230 ; Tac. Ann. 3, 38.