- perihelion (n.)
[perihelion 词源字典]
- "point at which a celestial body is nearest the Sun," 1680s, coined in Modern Latin (perihelium) by Kepler (1596) from Latinizations of Greek peri "near" (see peri-) + helios "sun" (see sol). Subsequently re-Greeked.[perihelion etymology, perihelion origin, 英语词源]