n. & v.
n. 1 darkness; obscurity. 2 melancholy; despondency. 3 poet. a dark place.
v. 1 intr. be gloomy or melancholy; frown. 2 intr. (of the sky etc.) be dull or threatening; lour. 3 intr. appear darkly or obscurely. 4 tr. cover with gloom; make dark or dismal.
[ ME gloum(b)e, of unkn. orig.: cf. GLUM ]