Having a quality of glimmering; shiny or sparkling in a soft, intermittent way.
From glimmer plus the adjectival suffix -y, creating an informal or descriptive adjective. The -y suffix makes adjectives feel more casual and immediate than the more formal -ous suffix.
English has both 'glimmerous' and 'glimmery'—the -y version feels more conversational and modern, which is why you're likely to encounter 'glimmery' in contemporary writing while 'glimmerous' sounds archaic and poetic.
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