Batten \Bat"ten\ (b[a^]t"t'n), v. t. [imp. & p. p. {Battened} (b[a^]t"t'nd); p. pr. & vb. n. {Battening}.] [See {Batful}.] 1. To make fat by plenteous feeding; to fatten. "Battening our flocks." --Milton. [1913 Webster] 2. To fertilize or enrich, as land. [1913 Webster]