forlorn hope /fər-lörnˈ hōp/

1. Orig, a body of soldiers selected for some service of especial danger
2. A desperate enterprise of last resort
3. A vain or faint hope (from association with hope, in the sense of expectation)

• bureaucracy
• bureaucrat
• bureaucratic
• back-blockers
• back-blocks
• backboard
• backboards
• back boiler
• back boilers
• backbond
• backbone
• backboned
• backboneless
• backbones
• backbreaker
• backbreakers
• backbreaking
• back burner
• back-burner
• back burners
• back-calculate
• back-calculated
• back-calculates
• back-calculating
• back-calculation