Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
Pallēnē, ēs, f., = Παλλήνη, a peninsula and town of Macedonia, on the Thermaic Gulf, also called Phlegra, where the battle between the gods and the giants took place, Plin. 4, 10, 17, § 36; Ov. M. 15, 356; Val. Fl. 2, 17; Sen. Herc. Fur. 979.
Hence,