finally, at last / (with a negative) in the end

decay, deterioration, disintegration / collapse

to collapse / to decay, to deteriorate, to disintegrate

the past / ancient times

(not of a person) old, aged, antiquated

old

that which is constructed to connect two points for the purpose of transportation: a bridge / a bridge-like walkway or corridor between two buildings in a manor, palace, castle, or similar structure

bridge

the Gestaltzerfall phenomenon, gestalt decomposition (where something seems to lose its meaning after long exposure)

"collapse of the abdominal muscles": (informal, originally Internet slang) violent laughing from hilarity