undergang

From Middle English undergangen (“to undego, endure, be baptised”), from Old English undergangan (“to undergo”); equivalent to under- +‎ gang (“to walk, step, go”).

undergang (third-person singular simple present undergangs, present participle underganging, simple past and past participle underganged)

1. (rare or dialectal, Northern England, Scotland) To undergo; pass through; endure.

• underganging

undergang (plural undergangs)

1. (rare or dialectal, Northern England, Scotland) A passage beneath any obstruction, e.g. a roadway tunnel beneath a railway, etc.

• overgang

From under- +‎ gang.

undergang m (definite singular undergangen, indefinite plural underganger, definite plural undergangene)

1. an underpass
2. a subway (for pedestrians)

• “undergang” in The Bokmål Dictionary.

From under- +‎ gang as also a verbal noun of both gå under (“to go under, sink, perish”) and undergå (“to undergo, endure”). Compare also with German Untergang.

undergang m (definite singular undergangen, indefinite plural undergangar, definite plural undergangane)

1. a fall, downfall, doom, perdition, destruction
2. (transport) an underpass; a subway (mainly for pedestrians)
3. (brewing) bottom fermentation
4. (nautical) a sinking
5. (astronomy, rare) setting

• (downfall): fortaping, øydelegging, fall
• (sinking): forlis, skipsforlis, skipbrot
• (setting of an astronomical body): nedgang

• fotgjengarundergang m
• jernbaneundergang m
• undergangsstemning f

• “undergang” in The Nynorsk Dictionary.