pennyroyaln.
英 penɪ'rɒɪəl | 美 'pɛnə'rɔɪəl
中文n. 薄荷油
词根词源
pennyroyal (n.)herb, 1520s, alteration by folk etymology of Anglo-French puliol real; for second element see royal; first element ultimately from Latin puleium "thyme," of unknown origin.
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