тарсидан: to be scared
I am not scared of you!
Аз сояи худ метарсад.
He is scared of his own shadow.
Don’t confused тарсидан (to be scared) with тарсондан (to scare).
Ман аз вай тарсидам – I was scared of him.
Ман вайро тарсондам. – I scared him.
Somebody who is scared of everything is тарсончак.