The story
- Pre-Greek · derived from
- substrate · derived from
- Latin · derived fromsīdereus
- English todaysidereal
From Latin sīdereus + -al (cf. Latin sīderālis), from sīdus (“star, constellation”), of unknown ultimate origin, likely a substrate language such as Pre-Greek.
Words from the same roots
Latinsīdereus all →
sidereous
Etymology from Wiktionary, CC BY-SA 4.0.