Palatium

Uncertain, either from:

• (in classical writers) Pallantium, a city founded near the mount by Evander and named after Pallantium (Livy, I.v), his Arcadian hometown, itself named after its own founder, Pallas (son of Lycaon) (see Πᾰ́λλᾱς, Πᾰ́λλᾰντος (Pắllās, Pắllăntos));
• Etruscan 𐌚𐌀𐌋𐌀𐌃 (falad, “sky”), the same source as Palēs (“Pales, the Italic goddess of shepherds, flocks and livestock”);
• palātum (“roof of the mouth; dome, vault”), itself perhaps related to the Etruscan term above;^[1]
• pālus (“stake; enclosure”).

Palātium n sg (genitive Palātiī or Palātī); second declension

1. the Palatine Hill, one of the seven hills of Rome

   Synonyms: Palātīnus mons, Palātīnus

   Coordinate terms: Aventīnus mons, Caelius mons, Capitōlium (Capitōlīnus mons), Esquilīnus mons (Esquiliae), Quirinālis collis, Viminālis collis

Second-declension noun (neuter), with locative, singular only.

¹Found in older Latin (until the Augustan Age).

• Palātīnus
• palātium
• Palātua

• “Palatium”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• Palatium in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.