Definition of topcoat

The word "topcoat" likely originated in the late 19th century as a combination of two words: "top" and "coat." "Top" referred to the garment's position as an outer layer worn over other clothes, while "coat" simply described the garment type. The earliest documented use of the term "topcoat" is from 1892, reflecting the increasing popularity of this style of outerwear. The word's simplicity and descriptive nature contributed to its widespread adoption and enduring use.