aphelion

The story

1. Proto-Indo-European · derived from*sóh₂wl̥“the sun”
2. Ancient Greek · derived fromἀπο-
3. New Latin · derived fromaphēlium
4. English todayaphelion

From New Latin aphēlium (whence English aphelium, now displaced) + -ion (used in the names of other apsides). Aphelium was formed from Ancient Greek ἀπο- (apo-, prefix meaning ‘away, from, off’) + ἥλῐος (hḗlĭos, “the sun”) (ultimately from Proto-Indo-European *sóh₂wl̥ (“the sun”)), modelled after New Latin apogaeum (“apogee”). The plural form aphelia is from aphelion + -a (plural form of the suffix -on).

Words from the same roots