Lewis Short
(verb) : compendĭo, āvi, ātum, 1, compendium (eccl. Lat.).
* To shorten, abridge: sermonem,Tert. adv. Marc. 4, 9; 4, 1.
* Compendiare alicui, lit., to shorten the way of life for one; hence, to kill him, Aug. Quaest. in Hept. 7 fin.
Charlton T. Lewis, Charles Short, A Latin Dictionary