適度
てきど · tekido · JLPT N3 · na-adj
moderate
⚖️ 適度 = suitable 適 + degree 度: just the right amount
適 (teki) means suitable or fitting, as in 適当; 度 (do) means degree or extent, as in 温度 (temperature). Together: a suitable degree, neither too much nor too little.
度 — 广 (shelter) + 庶 abbreviated (phonetic)
Originally depicted a hand measuring length under a shelter, meaning 'to measure' or 'a measure/standard.' From this came extended senses like 'degree,' 'extent,' and 'to pass through' (as in passing time). The reading 'dù' means degree/measure, while 'duó' preserves the older verbal sense of measuring.