dose

The story

1. Ancient Greek · derived fromδόσις“a portion prescribed”
2. Late Latin · derived fromdosis
3. Middle French · borrowed fromdose
4. English todaydose

Borrowed from Middle French dose, from Late Latin dosis, from Ancient Greek δόσις (dósis, “a portion prescribed”, literally “a giving”), used by Galen and other Greek physicians to mean an amount of medicine, from δίδωμι (dídōmi, “to give”). Mostly displaced English drench. Doublet of doos.