暖和
nuǎn huo · HSK 3
warm
☀️ 暖 = warm + 和 = harmonious/mild; together: cozy-warm
暖 (nuǎn) means warm on its own; 和 (huo, neutral tone here) softens it into the colloquial 'nice and warm.' Compare 暖 alone (warm) vs 暖和 (pleasantly warm, like a sunny spring day or a heated room).
暖 — sun radical 日 + 爰 (yuán, phonetic)
暖 is a semantic-phonetic compound. The 日 'sun' radical carries the meaning of warmth, while 爰 supplies the sound (historically close to 'nuǎn'). It originally described the warmth of sunlight and broadened to mean 'warm' in general — both physical heat and figurative warmth like kindness.
和 — grain 禾 (phonetic) + mouth 口
和 is a phono-semantic compound: 禾 (grain) gives the sound and 口 (mouth) hints at meaning, originally suggesting voices joining in agreement or song. From this it came to mean harmony, peace, and 'together with'. In Japanese it also became the native word for Japan itself.