Means "bright pledge", derived from the Germanic elements gisil "pledge, hostage" and beraht "bright". The Normans introduced this name to England, where it was common during the Middle Ages. It was borne by a 12th-century British saint, the founder of the religious order known as the Gilbertines.

A Song of Ice and Fire characters, Alien characters, Anne of Green Gables characters, athletes, Caillou characters, Code Geass characters, Disney characters, Frasier characters, Hamilton, light, literature, medieval, never out of the US top 1000, Ogre Battle characters, retired Atlantic hurricane names, saints, storms, The Sopranos characters, towns, Violet Evergarden characters

• Ernst Förstemann, Altdeutsches namenbuch (1900), page 638