Usage History of 'irrefragably'

The following chart shows how frequently 'irrefragably' appeared in printed materials over time. For example, the word 'irrefragably' occurred 6 times in books in 1668 and 896 times in 2008. From 1668 to 2008, the word 'irrefragably' was used a total of 20,668 times in books scanned by Google. See Reference: Google Ngram project.

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