o 1 n 1 r 1 u 1 s 1 h 4
6 letters · 9 points in Scrabble
Meaning
noun (military) an offensive against an enemy (using weapons)
noun a forceful forward rush or flow
originFrom on- + rush. Compare Middle English onresen (“to rush upon; attack”), from Old English onrǣsan (“to rush, rush on”); Old English onrǣs (“an onrush, assault, attack”).
Etymology from Wiktionary, CC BY-SA 3.0