Dictionary entry

Labarum

Webster's Dictionary 1913

‖Lab″a‐rum (�), n.; pl.Labara (#). The standard adopted by the Emperor Constantine after his conversion to Christianity. It is described as a pike bearing a silk banner hanging from a crosspiece, and surmounted by a golden crown. It bore a monogram of the first two letters (ΧΡ) of the name of Christ in its Greek form. Later, the name was given to various modifications of this standard.