Lewis Short
explēmentum (noun N) : expleo
* That which fills up.
* Lit., of food, a filling, stuffing: inanimentis explementum quaerito,Plaut. Stich. 1, 3, 19: cacumina arborum explementum esse ventris,Sen. Ep. 110, 12.—*
* Trop., of speech, a complement, supplement: quod sequitur ... explementum esse,Sen. Suas. 2, 20.
Charlton T. Lewis, Charles Short, A Latin Dictionary