Usage History of 'iffy'

The following chart shows how frequently 'iffy' appeared in printed materials over time. For example, the word 'iffy' occurred 2 times in books in 1678 and 3,521 times in 2008. From 1678 to 2008, the word 'iffy' was used a total of 64,441 times in books scanned by Google. See Reference: Google Ngram project.

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