～度
～ど · ～do · JLPT N5 · noun
happening
🌡️ do = how many times you DO it; also degrees on a thermometer
度 means a measure or extent. As a counter it measures repeats: 一度 (ichi-do) = once, 二度 (ni-do) = twice. The same measuring sense gives degrees of temperature or angle: 三十度 = 30 degrees. Each do is one time you DO something.
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.