lum noun.
[lʌm] Scot. &
north. E16.[Perh. from Old French lum light (from Latin lumen): cf. French lumière in sense 'aperture, passage'.]1. An opening in a roof; a skylight. Only in
E16.2. A chimney; a chimney-top.
E17.
Comb.:
lum hat a top hat.
[TahlilGaran] English Dictionary ▲