the.com/nicotine

means The addictive chemical compound in tobacco plants that stimulates the nervous system and hooks smokers into needing more of it.

from Named after Jean Nicot de Villemain, a 16th-century French diplomat who, while serving as ambassador to Portugal, sent tobacco seeds and leaves back to the French court, touting the plant's supposed medicinal powers. The genus name Nicotiana was coined in his honor, and the chemical compound isolated from it in the early 1800s inherited the name — so every craving is, technically, named after a guy who thought he was doing everyone a favor.