～心
～しん · ～shin · JLPT N1 · noun
mind of ~
🧠 〜心 = shin, heart or mind as a suffix: 好奇心 = curious + mind-of = curiosity
Shin (心) means heart or mind. Attach it after a trait or feeling to name the mind-state: 親切心 = kind + mind-of = kindness. Learn the suffix once and reuse it.
心 — pictograph of a heart with chambers and aorta
心 is a pictograph showing a stylized heart, with strokes representing the organ's chambers and the aorta at the top. Originally meaning the physical heart, it broadened to cover mind, feelings, and intentions, since ancient Chinese thought located thinking and emotion in the heart.