horologium

horologium · noun¹

1. Ancient Greek · derived fromὡρολόγιον
2. Latin · borrowed fromhorologium
3. English todayhorologium

From Latin horologium, from Ancient Greek ὡρολόγιον (hōrológion). In reference to Eastern Orthodoxy, via its Medieval Greek development. See menologium. Doublet of horologe.

Horologium · proper noun²

1. Latin · borrowed fromHōrologium Oscillitorium“Pendulum Clock”
2. Latin · borrowed fromHōrologium
3. English todayHorologium

See horologium. As a location in Rome, a clipping of Latin Hōrologium Augustī (“Sundial of Augustus”). As a constellation, a clipping of Latin Hōrologium Oscillitorium (“Pendulum Clock”), coined in 1763 by the French astronomer De Lacaille to honor the Dutch astronomer and mathematician Christian Huygens, who had written a major work by that name.

Words from the same roots