zany: [16] Zany originated as the name of a character in the old Italian commedia dell’arte, who tried, rather feebly, to mimic the antics of the clown. It came from Italian Zanni, a Venetian and Lombardic variant of Gianni, the pet form of Giovanni (the Italian equivalent of English John). Its meaning was broadened out to ‘buffoon’ in the 17th century, but it does not seem to have really established itself as an adjective until the mid 19th century. => john[zany etymology, zany origin, 英语词源]