1. To express or to feel grief or sorrow; to grieve; to be sorrowful; to lament; to be in a state of grief or sadness. Abraham came to mourn for Sarah, and to weep for her. (gen. Xxiii. 2)
2. To wear the customary garb of a mourner. We mourn in black; why mourn we not in blood? (Shak) Grieve for an hour, perhaps, then mourn a year. (pope)
Origin: AS. Murnan; akin to OS. Mornian, OHG. Mornen, Goth. Maornan.