Unfamiliar words, places, and sundry other references get added to the list with a view toward richer cultural and conversational engagement.

Recently Erased Ignorance
Ignorance Explained
1 ducal palace of or relating to a duke or dukedom
2 doge the chief magistrate in the republics of Venice and Genoa
3 eyrie British spelling of AERIE: the nest of a bird (esp. bird of prey?) on a cliff or a mountaintop
4 purblind having impaired or defective vision. from the adverb PURE 'utterly' + BLIND
5 rapine POETIC/LITERARY the violent seizure of someone's property.
6 garrulous excessively talkative, esp. on trivial matters
7 muzhik a Russian peasant
8 effluvium an unpleasant or harmful odor, secretion, or discharge
9 moist star (Shakespeare) the moon
10 stylobate a continuous flat coping or pavement supporting a row of architectural columns

The full list can be viewed here.

Definitions appearing on this page are generally either verbatim or derived from Merriam-Webster's College Dictionary, Tenth Edition, 1999 or its online counterpart.