Legion

Legion - (Easton's Bible Dictionary)

A regiment of the Roman army, the number of men composing which differed at different times. It originally consisted of three thousand men, but in the time of Christ consisted of six thousand, exclusive of horsemen, who were in number a tenth of the foot-men. The word is used (Matt. 26:53; Mark 5:9) to express simply a great multitude.

Legion - (Webster's 1828 Dictionary)

LE'GION, n. [L. legio, from lego, to collect.]

1. In Roman antiquity, a body of infantry consisting of different numbers of men at different periods, from three to five thousand. Each legion was divided into ten cohorts, each cohort into ten companies, and each company into two centuries.

2. A military force; military bands.

3. A great number.

Where one sin has entered, legions will force their way through the same breach.

My name is legion, for we are many. Mark 5.