1610. Folkingham, Feudigr., I. vi. 13. With what Herbage the Crust or Sword is matted, mantled and swarthed.
1765. Museum Rust., IV. xxi. 95. If, through … some mischance in the hay-seeds, it should not swarth well.
1858. Jrnl. R. Agric. Soc., XIX. I. 256. Where land is of a rich loamy character, there is no difficulty in getting it to swarth over with grass of good quality.
