losgadh

a burning, Irish loscadh, Early Irish loscud, Welsh llosg, urere, Cornish losc (n.) Breton losk: *loskô, I burn, *lopskô, root, lop, lap; Greek $$Glámpw, shine; Old Prussian lopis flame, Lettic lapa, pine-torch (Stokes). See lasair, to whose root it is usually referred.