In a sad, quiet, or depressed manner; without happiness or enthusiasm.
From 'glum' (morose, gloomy) + '-ly' (adverb suffix). 'Glum' itself emerged in English around the 1660s, possibly from Old Norse 'glúmr' or related to 'gloom.' The adverb form became standard by the 18th century.
The word 'glumly' perfectly captures a British emotional state—that peculiar quiet sadness that's expressed through understated behavior rather than loud complaint, reflecting a whole cultural attitude.
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