Usage History of 'knobblier'

The following chart shows how frequently 'knobblier' appeared in printed materials over time. For example, the word 'knobblier' occurred 1 time in books in 1949 and 6 times in 2008. From 1949 to 2008, the word 'knobblier' was used a total of 105 times in books scanned by Google. See Reference: Google Ngram project.

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