The quality or state of being babish; childishness or infantile behavior.
From 'babish' (adjective) plus the '-ness' suffix (Old English origin), which converts adjectives into abstract nouns representing their essential qualities.
The '-ness' suffix is English's favorite way to turn qualities into things we can think about—'sad' becomes 'sadness,' 'kind' becomes 'kindness.' This abstraction process shows how language helps us organize thinking.
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