Quenya 

oloirë

great flood

oloirë noun "great flood" (VT42:10)

oloirë

noun. great flood

A noun for “a great flood” appearing in notes on The Rivers and Beacon-hills of Gondor from 1967-69, an intensified form that was one of the few surviving Quenya derivatives of the root √LOG “wet (and soft), soaked, swampy”. See luimë for other less intensive “flood” words.