officinal
/ˌɒfɪˈsaɪnəl/adjective
- chiefly historical (of a herb or drug) standardly used in medicine〈主史〉（草本植物）药用的; （药物）使用符合规定的。
派生词
officinally
adverb词源
late 17th cent. (as a noun denoting an officinal medicine)： from medieval Latin officinalis 'storeroom for medicines', from Latin officina 'workshop'.