The quality or state of being golden, ornate, or elaborately decorated; excessive ornamentation or fancy style.
From 'aureate' plus the noun-forming suffix '-ness,' creating an abstract noun. This describes the quality itself of being overly decorated or having a golden character.
The 'aureateness' of medieval manuscripts—all that gold, jeweled letters, and crazy decorations—actually helped monks stay focused by making reading feel sacred!
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