感激
かんげき · kangeki · JLPT N2 · noun
emotion
感 = feel, 激 = intense: a feeling so strong it moves you deeply
激 originally meant a fierce, rushing current, so 感激 is a feeling that rushes through you. Read 感 as feel and 激 as intense.
感 — heart 心 + 咸 (xián, phonetic)
A semantic-phonetic compound. The heart radical 心 at the bottom carries the meaning of feeling or emotion, while 咸 supplies the sound. Together 感 conveys being moved in the heart, hence 'to feel,' 'sense,' or 'be affected by' something.