[of.fi.ci.nal] adj [ML officinalis of a storeroom, fr. officina storeroom, fr. L, workshop, fr. opific-, opifex workman, fr. opus work + facere to do] (ca. 1720): medicinal "a monograph on ~ flora"
OFFICINAL
Meaning of OFFICINAL in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012