和蔼
hé ǎi · HSK 7
kindly
和 = harmony/peace + 蔼 = friendly; a harmonious, friendly manner = kindly
和 carries the sense of peace and getting along, and 蔼 means warm and friendly. Put together, 和蔼 describes someone whose peaceful, friendly way makes them amiable and easy to be around.
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.