The word 嫉妒 (jealousy) is formed through the combination of two characters that both independently and synergistically convey the essence of the emotion. Each character prominently features the "female" radical (女) on the left, a classical semantic component often associating the word with inner, personal feelings and social relations. The right side of 嫉 is 疾 (sickness), suggesting a toxic or afflictive quality, while the right side of 妒 is 户 (door/household), evoking something private, enclosed, and inwardly festering. Together, they pictorially construct the concept as a kind of "sickened heart behind closed doors", visually embedding the idea of a consuming, private resentment.