"Beldam" derives from French "belle dame" (beautiful lady), though it evolved to mean primarily an old woman, grandmother, or hag—a semantic decline from beauty to age. The term could be neutral (grandmother) or contemptuous (ugly old woman, witch), depending on context. Medieval and Renaissance writers used it when age and gender intersected with social judgment, particularly regarding women who'd lost youth's power but gained age's authority or fear. Witches were often beldams, as were wise women and healers whose knowledge inspired suspicion. Poets employed the term's ambiguity to explore attitudes toward aging women—respected or reviled, wise or wicked. Its evolution from beautiful lady to old hag reflects cultural anxieties about female aging and the loss of beauty-based social power.

Beldam's evolution from neutral "grandmother" (belle dame, beautiful lady) to pejorative "hag" reflects changing attitudes toward elderly women. In medieval literature, it could be respectful; by Shakespeare's time, predominantly negative. The term appears frequently in witch scenes and gothic literature, embodying cultural anxieties about aging femininity and female power. Spenser and Shakespeare employ it for supernatural or malevolent female figures. Etymology from French "belle dame" shows semantic deterioration. Related to "crone" and "hag" but often implies more active malevolence. Essential for analyzing representations of women, ageism in literature, and the witch archetype. Modern usage retains almost exclusively negative connotations, making it a strong example of semantic pejoration.