The word 'stent' originates from the name of Charles Thomas Stent, a 19th-century English dentist known for improving dental impression compounds. In the early 20th century, plastic surgeons began using 'Stent's compound' as a support for skin grafts, and the term generalized to mean any supportive structure or mold. By the 1960s, its usage was specifically adopted in cardiovascular surgery to describe the tubular supports used to keep arteries open, solidifying its modern medical meaning. Thus, a surname evolved into a generic medical term through a process of metonymy, where the material invented by the person came to represent the supportive function itself.

This is a simplex word. It is an eponym derived from the name of a person, not composed of classical morphemes.