Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
Cē̆brēn, ēnis, m., = Κεβρήν, a river in Troas; also, a river god, father of Œnone, Sabin. Ep. 89, and of Hesperie, who is thence called Cē̆brēnis; gen. Cebrenĭdos, Stat. S. 1, 5, 21; acc. Cebrenida, Ov. M. 11, 769.