lunge

Concise Oxford English Dictionary © 2008 Oxford University Press:
lunge1

▶noun a sudden forward movement of the body.

■ a thrust in fencing, in which the leading leg is bent while the back leg remains straightened.

▶verb (lunges, lungeing or lunging, lunged) make a lunge.

■ make a sudden forward thrust with.

– origin C18: from earlier allonge, from Fr. allonger ‘lengthen’.

Concise Oxford English Dictionary © 2008 Oxford University Press:
lunge2 (also longe)

▶noun a long rein on which a horse is made to move in a circle round its trainer. ▶verb (lunges, lungeing, lunged) exercise (a horse or rider) on a lunge.

– origin C18: from Fr. longe, from allonge ‘lengthening out’.