Palaestinus
Could not find Palaestinis in Logeion dictionaries.
Palaestinis Proper-name adjective: neuter ablative plural, Proper-name adjective: feminine ablative plural, Proper-name adjective: masculine ablative plural, Proper-name adjective: neuter dative plural, Proper-name adjective: feminine dative plural, Proper-name adjective: masculine dative plural of Palaestinus
Palaestīnus, a, um, s. Palaestēu. Palaestīna.
Pălæstīnus, (14) a, um, ¶ 1 de la Palestine : in Palæstinæ margine aquæ Ov. F. 2, 464, sur le bord de lʼEuphrate || Palæstinī, m. , Ov. M. 4, 46, c. Palæstinenses ¶ 2 v. Palæste.
Palaest'inus
(Παλαιστῖνος) a son of Poseidon and father of Haliacmon. From grief at the death of his son, Palaestinus threw himself into the river, which was called after him Palaestinus, and subsequently Strymon. (Plut. De Fluv. 11.) [L.S]