Quenya 

níríte

adjective. forceful, exerting thrust or pressure, driving

Quenya [PE 22:165] Group: Mellonath Daeron. Published by

nírítë

adjective. forceful, exerting great thrust or pressure, driving

An adjective glossed “forceful, exerting great thrust or pressure, driving” based on Q. nírë “force” and appearing in Late Notes on Verb Structure (LVS) from 1969 (PE22/165).