Webster's Revised Unabridged Dictionary · 1913

Badge

Badge (baj) , noun

[Late Latin bagea, bagia, sign, prob. of German origin; compare Anglo-Saxon beág, beáh, bracelet, collar, crown, Old Saxon bōg- in comp., Anglo-Saxon būgan to bow, bend, German biegen. See Bow to bend.]

1.
A distinctive mark, token, sign, or cognizance, worn on the person; as, the badge of a society; the badge of a policeman.
Tax gatherers, recognized by their official badges. — Prescott
2.
Something characteristic; a mark; a token.
Sweet mercy is nobility's true badge. — Shakespeare
3.
(Nautical) A carved ornament on the stern of a vessel, containing a window or the representation of one.

Badge (baj) , transitive verb

To mark or distinguish with a badge.