Solonĭum

ii, n.
I. a district near Lanuvium, on the Via Ostiensis, Cic. Div. 1, 36, 79; 2, 31, 66; id. Att. 2, 3, 3.—Called also Solonius ager, Liv. 8, 12; Fest. s. v. pomonal, p. 250, b. Müll.
Lewis & Short
A Latin Dictionary, 1879
An open-access project