Sticky or adhesive in nature; glutinous or resembling glue.
Possibly a back-formation or variant of glutinous, combining 'glue' with adjectival suffixes, or from Latin gluten (glue) with English suffixing patterns.
This appears to be an archaic or rare English construction—back in earlier centuries, English speakers experimented wildly with creating new adjectives, sometimes resulting in words that never caught on but reveal how flexible language creation was.
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