ESQUILLÆ (anc. geog.), one of the seven hills of Rome, which Varro will have to be two, viz. Cispinus and Oppius; also Mons Esquilinus, softened from Exquilinus; and this again from Excubinus, the watch or guard Romulus kept here, from a jealousy he entertained of his colleague Titus Tatius. On the east side it reached the city walls; on the south, the Via Laviniana; on the west, the wide valley between mount Coelius and the Palatine; on the north, the Mons Viminalis; on the east side was the Porta Esquilina. This hill by some of the ancients was called Suburranus, from the
street Suburra to the north of it: by the poets, Esqui-
lius.