Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
† hēmĕrēsĭos, on, adj., = ἡμερἠσιος, of a day: (Pamphilus) absolvit uno die tabellam, quae vocata est Hemeresios, puero picto, Plin. 35, 11, 40, § 124.