Isabel is derived from the Spanish and German names Isabella and Isabela, respectively. These names are feminized forms of the masculine name Isabel, which ultimately stems from the Occitan name Isabeau, a diminutive of the Germanic name Isolde. Isolde is composed of the elements 'is' meaning 'ice' or 'iron', and 'hild' signifying 'battle'. Therefore, Isabel can be interpreted to mean 'pledged to God', 'devoted to God', or 'God is my oath'. The name Isabel was popularized in England during the Middle Ages due to its association with Queen Isabel of Angoulême, who married King John of England. It has since been widely used in English-speaking countries and other parts of Europe.
"While Issabel gained some popularity around the mid-2000s with a spike in births from 2008 to 2012, it has since maintained a consistent yet modest presence in recent years."