Balefire
Balefire (bāl"fīr) , noun
[Anglo-Saxon balfȳr the fire of the funeral pile; bal fire, flame (akin to Icelandic bāl, OSlav. bēlu, white, Greek falo`s bright, white, Sanskrit bhāla brightness) + fȳr, English fire.]
A signal fire; an alarm fire.
Sweet Teviot! on thy silver tide
The glaring balefires blaze no more.