from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun The Enlightenment.
from The American Heritage® Dictionary of the English Language, 4th Edition
[German : auf, up (from Middle High German ūf, from Old High German; see upo in Indo-European roots) + Klärung, a making clear (from klären, to make clear, from Middle High German klæren, from klār, clear, from Latin clārus; see clear).]
from Wiktionary, Creative Commons Attribution/Share-Alike License
Borrowing from German Aufklärung ("enlightenment").
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