Elaborated spelling of Hazel, from the hazel tree or Old English 'hæsel'.
Hazelle is an embellished variant of Hazel, a name rooted deep in the natural and mystical landscape of the British Isles. The Old English "hæsel" referred to the hazel tree (Corylus avellana), a slender, many-stemmed tree of woodland edges whose forked branches became the instrument of choice for water-diviners and dowsers throughout Celtic and Anglo-Saxon culture. The hazel was considered a tree of wisdom and poetic inspiration in Irish mythology — hazelnuts falling into the Well of Wisdom were eaten by the salmon of knowledge, a central image in the legend of Fionn mac Cumhaill.
To carry a hazel-derived name is, in the oldest layers of meaning, to carry a connection to hidden knowledge and natural intuition. The name Hazel rose to widespread use in the Victorian era, when botanical names surged in popularity — Ivy, Violet, Lily, Rose — as part of a broader Romantic embrace of the natural world. The doubled-l spelling Hazelle introduces a continental elegance, softening the terminal sound and giving the name a visual distinctiveness that set bearers apart from their plainer-spelled contemporaries.
It follows a pattern seen in names like Estelle and Noelle, where the addition of terminal letters creates a more formal, almost French-inflected register. Hazelle largely retreated through the mid-twentieth century before Hazel experienced a significant revival in the 2010s, propelled in part by its use in John Green's novel The Fault in Our Stars. The variant Hazelle remains rarer, preserving that distinctive quality for parents who want the warmth and heritage of Hazel with a touch of individuality.