Tilth \Tilth\, n. [AS. til?, fr. tilian to till. See {Till} to cultivate.] 1. The state of being tilled, or prepared for a crop; culture; as, land is good tilth. [1913 Webster] The tilth and rank fertility of its golden youth. --De Quincey. [1913 Webster] 2. That which is tilled; tillage ground. [R.] [1913 Webster] And so by tilth and grange . . . We gained the mother city. --Tennyson. [1913 Webster]