bracer

plural bracers

1. That which braces, binds, or makes firm; a band or bandage.
2. Something bracing; a stimulant.

   In fact I did not feel good. I was suffering from the morning sickness of the steady, heavy drinker. What I needed was a pick-me-up, a bracer.

   1913 August, Jack London, John Barleycorn, New York, N.Y.: The Century Co., →OCLC

   1 more example

   Country air in the fields, or in gardens, when breathed at proper hours, is an excellent bracer of the nerves, and a sure brightener of the complexion.

   1830, The Mirror of the Graces: Or, The English Lady's Costume, page 27

3. archeryA covering to protect the arm of the bowman from the vibration of the string.

   To prevent the bow string from hanging on the left arm, it is covered with a piece of smooth leather, fastened on the outside of the arm, this is called a bracer.

   1786, Francis Grose, A Treatise on Ancient Armour and Weapons, page 34

4. Armor for the forearm; a brassard.
5. A medicine, as an astringent or a tonic, which gives tension or tone to any part of the body.