Can some person (Frances or??) give an enlightened historical understanding where the name RUSHEN originates...

We have Rushen Sheading, Rushen Parish, Rushen Abbey, Castle Rushen etc....therefore because its extensive usage outside the Parish of the same name, there must be something of deep significance about the name... especially the fact the abbots utilised it for the Abbey's name in Malew.

I no longer have my copy of Kneen's placenames but from memory it never gave much on the name's origin...

Thanks in advance