This is the 2536th most frequent German word.
vergehen
"Vergehen" means "to pass," "to elapse," or "to fade (away)."
Here, 'vergehen' is used to describe the passage of time, indicating something transient and ongoing.
Die Zeit vergeht schnell, wenn man Spaß hat.
Time passes quickly when one is having fun.
In this context, 'vergehen' expresses the loss or fading of feelings or states.
Mir vergeht die Lust, weiterzuarbeiten.
I am losing the desire to continue working.
Here, 'Vergehen' is used as a noun meaning an offense or misconduct.