Lewis Short
delta (noun F.n.n) = δέλτα: f. or n.
* The fourth letter of the Greek alphabet, delta, Δ: non formam at vocem deltae gero Romuleum D, Aus. Idyll. de lit. monos. 14; so (but with gender undetermined) Mel. 2, 7, 14.
* Meton.
* N., Δέλτα, nom. prop., the Delta in Lower Egypt, Mel. 1, 9, 2; Plin. 5, 9, 9, § 48; 3, 16, 20, § 121; Auct. B. Alex. 27.
Charlton T. Lewis, Charles Short, A Latin Dictionary