means Something — usually a drink or light snack — that revives you, or the act of being restored and renewed.

from From the Old French 'refreschir,' to make fresh again, built on the same 'fresh' that English already knew — cool, new, unspoiled. The 're-' is the little prefix of doing-again, so a refreshment is literally a re-freshing: the world made crisp once more. By the time it settled into English in the late Middle Ages it carried both meanings at once — the renewal you feel and the cup of something cold that delivers it.