bourn (n.) 1
frontier, destination, boundary
AC I.i.16 [Cleopatra to Antony] I'll set a bourn how far to be beloved
Ham III.i.79 [Hamlet alone, of death] from whose bourn / No traveller returns
KL [disguised Edgar to Gloucester, of Gloucester's imagined fall] From the dread summit of this chalky bourn [i.e. at the edge of England]
Per IV.iv.4 [Gower alone] take your imagination / From bourn to bourn
TC II.iii.246 [Ulysses to Ajax, of his wisdom] Which, like a bourn, a pale, a shore, confines / Thy spacious and dilated parts
WT I.ii.134 [Leontes to Mamillius, of dice] one that fixes / No bourn 'twixt his and mine