bract
UK[brækt]US[brækt]
n
A modified leaf or scale, typically small, with a flower or flower cluster in its axil.
Etymology
The word 'bract' entered English in the 18th century as a direct adoption from the Latin 'bractea', meaning a thin piece of metal, gold leaf, or metal foil. This Latin term is thought to be of Gaulish origin, possibly related to words for breaking or fragmenting, reflecting the thin, fragile nature of the material. In botanical Latin, 'bractea' was applied to the thin, often papery modified leaves associated with flowers, a sense borrowed directly into English. The etymological logic connects the ancient concept of a thin metallic leaf to the modern botanical structure, both sharing the essential characteristic of being a thin, often protective layer.
Analysis
The word 'bract' is a simplex form. It is a direct borrowing from Latin, where it functioned as a noun.
Examples
The showy red parts of the poinsettia are not flowers but specialized leaves called bracts.
A small bract subtended each individual flower in the inflorescence.
Botanists study the shape and size of bracts to help classify plant species.