Palaestinus
Could not find Palaestini in Logeion dictionaries.
Palaestini Proper-name adjective: masculine vocative plural, Proper-name adjective: neuter genitive singular, Proper-name adjective: masculine nominative plural, Proper-name adjective: masculine genitive singular 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]