幸せ
しあわせ · shiawase · JLPT N3 · noun
happiness
🍀 shi-AWA-se: from shi-awase, things fitting together (awaseru = to match)
幸せ comes from 仕合わせ, built on 合わせる (awaseru), to fit or match. It first meant how events happened to line up, good or bad, and later narrowed to good fortune. Happiness is when things fit together.