毒
ドク

poison, virus, venom, germ, harm, injury, spite

JLPT2 G4 S8 F1419

The relevant seal inscription form combines 生 (fresh, slender grass shoots) + 母# (succession of offspring) → stir boiled herbs in a cooking vessel (compare 融 and 熟) for use as an aphrodisiac → *poison* (← stimulant drug) → *damage*; *ruin*; *extreme*.

[Full Kanji Etymology List]