A fun look at the meaning of "leiden" and what pity has to do with insults, passion and suffering.
leiden, leid tun, leider, die Leidenschaft, die Beleidigung, das Mitleid
The core idea of this root was:
It’s the origin of to lead as well as to load, which was about loading a vehicle for the way.
Another potential family member is satellite.
In German, the branch around leiden shifted from a neutral sense of going forth to a notion of carrying on through hardship.