Emily Dickinson Lexicon

SOP, n. [D. sop; Sax. sop; G. suppe, soup; Dan. suppe; Sw. soppa; Sp. sopa; It. zuppa; Fr. soupe. See Class Sb, No. 2, 30, &c. Qu. soap.]

1. Any thing steeped or dipped and softened in liquor, but chiefly something thus dipped in broth or liquid food, and intended to be eaten. Sops in wine, quantity for quantity, inebriate more than wine itself. – Bacon.
2. Any thing given to pacify; so called from the sop given to Cerberus, in mythology. Hence the phrase, to give sop to Cerberus. Sop-in-wine, a kind of pink. – Spenser.