Etymology of the Latin word dosis
the Latin word dosis (dose)
derived from the Greek word dosis, δόσις (a giving; by implication, (concretely) a gift)
derived from the Greek word didonai
derived from the Proto-Indo-European root *do-
derived from the Proto-Indo-European root *dō-
derived from the Greek word didomi, δίδωμι (to give (used in a very wide application, properly, or by implication, literally or figuratively; greatly modified by the connection))