RANCOR : RANKER ! Most of the students always hate the top RANKER of the class, as they always defeat them in the exams!
r+ancor..(rhymes like ANGER..)..so you have developed ANGER OR HATRED FOR YOUR FRIEND.
rancor sounds like Run Chor(thief). While playing cricket in childhood we would feel a sheer bitterness/hatred for the run chors
A RANCOR CAN ROAR in your family
Sounds similar to Ranchod ke Rathor from film 'Jaane tu ya jaane na' Rancod ke rathor had deep bitter anger to gain their name ( 3 conditions)
Rancor sounds like Rancho from 3 Idiots also chatur had long lasting haterated
rancor = The chor ( thief) + ran (run); The thief is runing with you money so bitter feeling.