Definition of "bourn"

bourn¹

noun
plural bourns
1. Alternative form of bourne (“small stream or brook”)
  Quotations
  My little boat can safely passe this perilous bourne.
  1590, Edmund Spenser, “Book II, Canto VI”, in The Faerie Queene. […], London: […] [John Wolfe] for William Ponsonbie, stanza 10

bourn²

noun
plural bourns
1. Alternative form of bourne (“destination; limit”)