Having the qualities, appearance, or properties of amber; resembling or containing amber.
From 'amber' plus the adjectival suffix '-ous' (used in Latin-derived adjectives like 'dangerous', 'famous', 'nervous').
The '-ous' suffix is one of English's most productive ways to turn nouns into adjectives—'amberous' means 'full of amber-like qualities,' just as 'adventurous' means 'full of adventure-seeking spirit.'
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