lunge (n.) Look up lunge at
1735, "a thrust with a sword," originally a fencing term, shortened from allonge, from French allonger "to extend, thrust," from Old French alongier "to lengthen, make long," from à "to" + Old French long, from Latin longus "long" (see long (adj.)).
lunge (v.) Look up lunge at
"to thrust," as in fencing, 1735 (implied in lunged), from lunge (n.). Sense of "make a sudden forward rush" is from 1821. Related: Lunging.