from The American Heritage® Dictionary of the English Language, 4th Edition
- intransitive v. To feel or express grief or sorrow. See Synonyms at grieve.
- intransitive v. To show grief for a death by conventional signs, as by wearing black clothes.
- intransitive v. To make a low, indistinct, mournful sound. Used especially of a dove.
- transitive v. To feel or express deep regret for: mourned the wasted years.
- transitive v. To grieve over (someone who has died).
- transitive v. To utter sorrowfully.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. To express sadness or sorrow for; to grieve over (especially a death).
- n. Sorrow, grief.
from the GNU version of the Collaborative International Dictionary of English
- intransitive v. To express or to feel grief or sorrow; to grieve; to be sorrowful; to lament; to be in a state of grief or sadness.
- intransitive v. To wear the customary garb of a mourner.
- transitive v. To grieve for; to lament; to deplore; to bemoan; to bewail.
- transitive v. To utter in a mournful manner or voice.
from The Century Dictionary and Cyclopedia
- To express grief or sorrow; grieve; be sorrowful; lament.
- To display the appearance of grief; wear the customary habiliments of sorrow.
- Synonyms Grieve, etc. See lament, v. i.
- To grieve for; lament; bewail; deplore.
- To convey or express grief for.
- n. Sorrow.
- To have a kind of malignant glanders: said of a horse, and allusively of persons, in the phrase to mourn of the chine or mourning of the chine. Compare to mose in the chine (under mose), and see mourner.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- v. feel sadness
- v. observe the customs of mourning after the death of a loved one
Middle English mournen, from Old English murnan; see (s)mer-1 in Indo-European roots.(American Heritage® Dictionary of the English Language, Fourth Edition)
Old English murnan, cognate with French morne ("gloomy"). (Wiktionary)