gilver en · NOUN
Etymology
Blend of gold + silver.
Meanings
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(neologism, rare, uncountable) A colour resulting from the mixing of gold and silver.
Somebody at Marvel jokingly said it was a combination of gold and silver, and they decided to say it was 'gilver'. Suddenly, we had to try and work out what the hell gilver was!
2018, Jonathan Wilkins, Ant-Man and the Wasp, page 86: