Plural of aroma; distinctive, usually pleasant smells or fragrances.
From Greek 'aroma' (meaning 'spice' or 'fragrance'), which entered English through Latin. The plural follows standard English noun rules with '-s'.
The ancient Greeks used 'aroma' specifically for imported spices from the East—frankincense, myrrh, cinnamon—which is why the word originally meant something rare and valuable, not just any pleasant smell.
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