Cylleneus
Could not find Cylleneum in Logeion dictionaries.
Cylleneum Proper-name adjective: neuter vocative singular, Proper-name adjective: masculine genitive plural, Proper-name adjective: masculine accusative singular, Proper-name adjective: neuter genitive plural, Proper-name adjective: neuter nominative singular, Proper-name adjective: neuter accusative singular of Cylleneus
Cyllēnēus, (14) a, um, du mont Cyllène, de Mercure : Ov. M. 11, 304 ; Hor. Epo. 13, 9.