more blue; a comparative form meaning having a greater degree of blue color or feeling sadder.
From 'blue' (Old English 'blāwe,' from Germanic roots, possibly from Proto-Indo-European 'bhel-' meaning bright or pale) plus '-er' (comparative suffix).
Interestingly, many ancient languages didn't have a word for blue—Homer's *Odyssey* describes the sea as 'wine-dark' instead, suggesting humans literally didn't perceive blue the same way until blue dye became common!
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