iocundus
Could not find iocundum in Logeion dictionaries.
iocundum Adjective: neuter nominative singular, Adjective: neuter accusative singular, Adjective: neuter genitive plural, Adjective: neuter vocative singular, Adjective: masculine genitive plural, Adjective: masculine accusative singular of iocundus
jŏcundus, a, um, v. iucundus (late Lat.), Vop. Proc. 12, 6.