"the Enlightenment," 1801, from German Aufklärung (18c.), literally "enlightenment," from aufklären "to enlighten" (17c.), from auf "up" (from PIE root *upo "under," also "up from under") + klären "to clear," from Latin clarus (see clear (adj.)).
auditor
auditorium
auditory
Audrey
Audubon
Aufklarung
*aug-
Augean
auger
aught
augment
)window.location='https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=byronic106@yahoo.com&lc=US&item_name=Donation+to +Help+Keep+Etymonline+Free+and+Open&no_note=0&cn=&curency_code=USD&bn=PP-DonationsBF:btn_donateCC_LG.gif:NonHosted'){kind=link}