Definition of wenching:
(n) :
(specifically) A girl or young woman of a lower class.
(n) :
(archaic, now dialectal or humorous, possibly offensive) A girl or young woman, especially a buxom or lively one.
(n) :
(archaic or dialectal) Used as a term of endearment for a female person, especially a wife, daughter, or girlfriend: darling, sweetheart.
(n) :
(archaic) A woman servant; a maidservant.
(n) :
(archaic) A promiscuous woman; a mistress (“other woman in an extramarital relationship”).
(n) :
(archaic) A prostitute.