One of the mysteries of the English language finally explained.
1Of or belonging to the air; aerial, airlike. Now rare.
2Of weather: cool, fresh, breezy, chilly. Now chiefly Scottish and United States regional (southern and south Midland).
3Conceited, snobbish; inclined to behave in an affected manner. Compare "airy". Now chiefly United States regional (southern and Midland, especially in African-American usage).
Late Middle English; earliest use found in Geoffrey Chaucer (c1340–1400), poet and administrator. From air + -ish.
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