from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Reliance on faith alone rather than scientific reasoning or philosophy in questions of religion.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. the doctrine that faith is the basis of all knowledge
Probably from French fidéïsme, from Latin fidēs, faith; see bheidh- in Indo-European roots.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin fides. (Wiktionary)