Lewis Short
(verb) : mulgĕo, si, sum or ctum, 2, Sanscr marǵ, wipe or rub away; Gr. ἀ-μέλγω; Germ. melken; Engl. milk
* To milk: oves,Verg. E. 3, 5: capras,Plin. 10, 39, 56, § 115.—Absol.: mulgent ad caseum faciendum,Varr. R. R. 2, 11, 4.—Prov.: mulgere hircos, of something impossible,Verg. E. 3, 91.
Charlton T. Lewis, Charles Short, A Latin Dictionary