Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
Căbylē, ēs, or -la, ae, f., a town in Thrace, Eutr. 6, 8.
Hence, Căbylētae, ārum, m., the inhabitants of Cabyle, Plin. 4, 11, 18, § 40.