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by kccqzy 509 days ago
The earliest occurrence of the word "moat" that I could find online from Buffett is from 1986: https://www.berkshirehathaway.com/letters/1986.html That shareholder letter is charmingly old-school.

Unfortunately letters before 1977 weren't available online so I wasn't able to search.

It also helps that I've been to several cities with an actual moat so this word is familiar to me.