All 3 Uses

antiquity
in
Don Quixote
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the third, to have discovered the antiquity of cards, that they were in use at least in the time of Charlemagne, as may be inferred from the words you say Durandarte uttered when, at the end of that long spell while Montesinos was talking to him, he woke up and said, 'Patience and shuffle.'†
Chpt 2.23-24
And this demonstration is just the thing for me for that other book I am writing, the 'Supplement to Polydore Vergil on the Invention of Antiquities;' for I believe he never thought of inserting that of cards in his book, as I mean to do in mine, and it will be a matter of great importance, particularly when I can cite so grave and veracious an authority as Señor Durandarte.†
Chpt 2.23-24 *
From this we may perceive the antiquity of starch and crimped ruffs.†
Chpt 2.43-44

Definitions:

(1) (antiquity)
ancient times; or a relic of ancient times

(Typically references a period preceding the European Middle Ages which began during the 5th century AD.)
(2) (meaning too rare to warrant focus)