Bourn, Bourne, n.
Etymology: [F. borne. See Bound a limit.]
A bound; a boundary; a limit. Hence: Point aimed at; goal. Where the land slopes to its watery bourn. Cowper. The undiscovered country, from whose bourn No traveler returns. Shak. Sole bourn, sole wish, sole object of my song. Wordsworth. To make the doctrine . . . their intellectual bourne. Tyndall.
1 other Webster entry under this spelling
Bourn, Bourne, n.
A stream or rivulet; a burn. My little boat can safely pass this perilous bourn. Spenser.