complementum

From compleō + -mentum.

complēmentum n (genitive complēmentī); second declension

1. complement (that which fills up or completes)
2. completion

Second-declension noun (neuter).

• complēmentārius

• “complementum”, in Charlton T. Lewis and Charles Short (1879), A Latin Dictionary, Oxford: Clarendon Press
• “complementum”, in Charlton T. Lewis (1891), An Elementary Latin Dictionary, New York: Harper & Brothers
• "complementum", in Charles du Fresne du Cange, Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)
• “complementum”, in Gaffiot, Félix (1934), Dictionnaire illustré latin-français, Hachette.