This is the 10242nd most frequent Catalan word.
persegur
"Persegur" in Catalan means "to pursue" or "to chase."
This usage of 'perseguir' means to strive or chase after an objective or goal.
Ell va perseguir el seu somni de convertir-se en metge.
He pursued his dream of becoming a doctor.
In this context, 'perseguir' is used to describe chasing after someone physically.
La policia va haver de perseguir el lladre pel carrer.
The police had to chase the thief down the street.
Here, 'perseguir' reflects the concept of an idea or burden persistently being in someone's thoughts.