Merriam-Webster Collegiate Dictionary - nerol

 noun  Etymology: International Scientific Vocabulary ner- (from ~i oil) + 1-ol  Date: 1869 a liquid alcohol C10H18O that has a rose scent and is used in perfumery NEROLI OIL  noun  Etymology: French neroli, from Italian neroli, from Anna Maria de La Tremoille, princess of Nerola fl1670  Date: 1849 a fragrant pale yellow essential oil obtained from flowers chiefly of the sour orange and used especially in cologne and as a flavoring