luisne
Definitions (by source)
a flame. tug...ardluisne ós iath, he caused great burning across a land, 1841; 2877 n.
Poems on the O'Reillys. Editor: James Carney.
f., flame; pl. dat. luisneadhaibh, ‘ardoribus,’ 4079
Trí Bior-Ghaoithe an Bháis: The Three Shafts of Death. Editor: Osborn Bergin.