Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
Byblus (-ŏs), i, f., = Βύβλος, a very ancient town in Phœnicia celebrated for the worship of Adonis, now Dschebail, Mel. 1, 12, 3; Plin. 5, 20, 17, § 78; Curt. 4, 1, 15.