Aesonius
Could not find Aesonium in Logeion dictionaries.
Aesonium 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 Aesonius
Æsŏnĭus, a, um, dʼÉson : Ov. M. 7, 156.