Grisel is related to Griselda, from Germanic roots often interpreted as gray battle or strong maiden.
Grisel is a compressed form of Griselda, a name of Germanic origin generally parsed as a compound of "gris" (grey) and "hild" (battle-maid), yielding the striking if enigmatic meaning "grey battle-maid" or "grey warrior woman." The name entered European literary consciousness most powerfully through Boccaccio's Decameron (1353), which concludes with the story of Patient Griselda — a peasant woman subjected to increasingly cruel tests of loyalty by her aristocratic husband, who endures them all with unbroken grace. The tale was retold by Petrarch in Latin, then by Chaucer in "The Clerk's Tale" in the Canterbury Tales, and later by countless others.
It made Griselda a medieval synonym for wifely patience, though modern readers often find her story more disturbing than exemplary. Despite — or perhaps because of — that loaded literary history, Grisel and Griselda maintained a foothold in Spanish-speaking cultures, particularly in Spain and Latin America, where the name was never exclusively associated with the medieval allegory. In those traditions it functions as a dignified, slightly antique given name, the way Constance or Prudence function in English.
The shorter form Grisel has a more compact, contemporary sound, shedding the full name's fairy-tale weight while retaining its Germanic strength. For contemporary parents, Grisel offers something genuinely rare: a name with documented history stretching back to the early medieval period that is nonetheless nearly absent from modern birth registers. It sounds both ancient and unfamiliar — a combination that is increasingly prized. The grey-battle etymology, far from being a liability, gives it a kind of steel-edged poetry.