noun /ˈvɑːlət/
a) Specifically, a youth acting as a knights attendant at the beginning of his training for knighthood.
The Winchester Manorhouse has fled bodily, like a Dream of the old Night (...) . House and people, royal and episcopal, lords and varlets, where are they?
My lady to be called a nasty Scotch wh–re by such a varlet!—To be sure I wish I had knocked his brains out with the punchbowl.
Wikipedia foundation.