From The Collaborative International Dictionary of English v.0.48:
Sowse \Sowse\, n. & v. See Souse. [Obs.] --ryden. [1913 Webster]
From The Collaborative International Dictionary of English v.0.48:
Souse \Souse\, n. [OF. sausse. See Sauce.] [Written also souce, sowce, and sowse.] 1. Pickle made with salt. [1913 Webster]
2. Something kept or steeped in pickle; esp., the pickled ears, feet, etc., of swine. [1913 Webster]
And he that can rear up a pig in his house, Hath cheaper his bacon, and sweeter his souse. --Tusser. [1913 Webster]
3. The ear; especially, a hog's ear. [Prov. Eng.] [1913 Webster]
4. The act of sousing; a plunging into water. [1913 Webster]