Lewis Short
(verb) : jūcundo, āre, id.
* To please, delight; mid., jucundari, to feel delighted, take delight (post-class.): consolationes Dei jucundant animam,Aug. de Gen. ad Litt. 12, 34; ex Psa. 94, 19: quotidie autem jucundabar ante faciem ejus,Lact. 4, 6; ex Prov. 8, 30; Vulg. Apoc. 11, 10 al.
Charlton T. Lewis, Charles Short, A Latin Dictionary