Merriam-Webster's Collegiate® Dictionary, 11th Edition
LUNGE
I. noun
Etymology: modification of French allonge extension, reach, from Old French alonge, from alongier to lengthen, from Vulgar Latin *allongare, from Latin ad- ad- + Late Latin longare, from Latin longus long
Date: 1748
a quick thrust or jab (as of a sword) usually made by leaning or striding forward, a sudden forward rush or reach ,
II. verb (lunged; lunging)
Date: 1772
intransitive verb to make a lunge ; move with or as if with a lunge, transitive verb to thrust or propel (as a blow) in a lunge