The quality of being moderately or fairly good; a state of being somewhat above average.
From 'goodish' (moderately good) plus '-ness' (suffix creating abstract nouns). This word extends the 'good' word family further by nominalizing the hedged adjective.
Adding '-ness' to 'goodish' might seem silly, but it shows how flexible English is—we can keep stacking suffixes to create increasingly specific emotional descriptions!
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