Usage History of 'impetrates'

The following chart shows how frequently 'impetrates' appeared in printed materials over time. For example, the word 'impetrates' occurred 4 times in books in 1678 and 23 times in 2008. From 1678 to 2008, the word 'impetrates' was used a total of 253 times in books scanned by Google. See Reference: Google Ngram project.

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