nicotine-stained

The compound adjective 'nicotine-stained' is a modern formation that directly describes a physical effect. The first element, 'nicotine', immortalizes Jean Nicot, whose surname became the basis for the alkaloid's name in the 19th century. The second element, 'stained', derives from the Old English concept of imparting color, which evolved to mean a discoloration, often unwanted. Combined, they create a vivid descriptor for the yellowish residue left by tobacco smoke on surfaces like fingers, teeth, or walls, logically linking the specific causative agent to its visible effect.

Structure: nicotine (chemical) + stained (marked) nicotine: From French, named after Jean Nicot, a 16th-century French diplomat who introduced tobacco to France. Functions as the specific substance noun. stained: From Old English 'stægnian' (to color, dye). Functions as a past participle adjective suffix meaning 'marked or discolored by'.