Nychthemeron meant maceration for a day and night, that is for 24 hours. It appears sometimes in directions for treating herbs and flowers previous to distillation.
Obolos, a Greek weight equal to half a scruple.
Œnclaion, a mixture of wine and oil.
Œnogala, a mixture of wine and milk.
Œnomeli, a mixture of wine and honey.
Œsypus, the name given by Dioscorides to wool fat.
Ointments among the Greeks and Romans were generally liquids. Anything used to anoint with, not being oil simply, was an ointment (miron in Greek, unguentum in Latin). From the Greek word was derived Myrepsus, which meant an ointment maker.
Opiates were originally electuaries containing opium or some other narcotic. Gradually, however, the word lost its significance and was used to indicate any medicinal substance of the same character. It is sometimes used for tooth pastes.
Oxycroceum was the name of a plaster among the ingredients of which were vinegar and saffron.
Panchrest. A remedy for all complaints.