Other forms: purgatories
Being stuck in standstill traffic can feel like purgatory, but this brief spell of unpleasantness is nothing compared to the misery endured by souls waiting to get into heaven, which is the original meaning of the word.
Purgatory comes from a Late Latin verb meaning "to cleanse" — purge shares the same root. In Roman Catholic doctrine, souls atoned for past sins in purgatory before entering heaven. In fact, for centuries, purgatory was often regarded as an actual physical place. Today, if you say you are in purgatory, you feel stuck or not able to continue towards a goal. High school might feel like purgatory because even though you're finished with your carefree childhood, you don't have the freedoms of adulthood yet.