The story
- Ancient Greek · derived fromθῆτα“theta”
- English todaythetan
c. Mid 20th c., Coined by Scientology founder L. Ron Hubbard, from theta + -n, from Ancient Greek θῆτα (thêta, “theta”), used in Scientology to represent the source of life.
Words from the same roots
Ancient Greekθῆτα all →
theta
Etymology from Wiktionary, CC BY-SA 4.0.