What does -fall express?
-fall keeps the meaning of "falling" or "descent" and builds two families of compounds: Natural descent or arrival: • rainfall = precipitation (rain falling) • snowfall = snow precipitation • nightfall = the moment darkness falls • waterfall = cascading water • downfall = collapse, ruin (falling downward) Figurative concepts: • pitfall = a hidden danger or trap (falling into a pit) • windfall = an unexpected gain (fruit blown down by wind) • shortfall = a deficit, a gap between expected and actual • downfall = the moral or political ruin of a person or system