Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
Hĭĕrāpŏlis, is, f., = Ἱεράπολις. A city of Great Phrygia, now Pambouk Kaleh, Vitr. 8, 3, 10; Plin. 2, 93, 95, § 208; Vulg. Col. 4, 13.
Hence,