The word 甜蜜 is formed by combining the character 甜, meaning "sweet" and constructed from the components 舌 (tongue) and 甘 (sweet), with the character 蜜, meaning "honey" and originating from a pictographic representation of a bee under a roof. This juxtaposition results in a compound where both characters contribute directly to the semantic meaning of sweetness, with 蜜 concretely specifying the sweet quality as honey-like.