Having aromatic qualities; fragrant or producing pleasant odors.
From aroma plus -ous (Latin suffix meaning 'full of' or 'having qualities of'). Similar formation to aromatic but less commonly used in modern English.
While 'aromatic' is the word you'll hear today, 'aromatous' is its older cousin—it appears in historical texts and reminds us that English constantly shuffles which word-forms actually survive in common use!
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