| 1. | a perilous or desperate enterprise. |
| 2. | a vain hope. |
| 3. | Obsolete. a group of soldiers assigned to perform some unusually dangerous service. |

| forlorn hope n.
[By folk etymology from Dutch verloren hoop, advance guard : verloren, past participle of verliezen, to lose; see leu- in Indo-European roots + hoop, troop.] |