taskmistress

From task +‎ mistress.

taskmistress (plural taskmistresses)

1. A woman who assigns tasks; a female overseer.
   • 1798, Mary Wollstonecraft Godwin, “[Maria: or, The] Wrongs of Woman”, in W[illiam] Godwin, editor, Posthumous Works of the Author of A Vindication of the Rights of Woman. […], volume I, London: […] J[oseph] Johnson, […]; and G[eorge,] G[eorge] and J[ohn] Robinson, […], →OCLC, chapter V, page 87:

     Not only under the laſh of my taſk-miſtreſs, but the drudge of the maid, apprentices and children, I never had a taſte of human kindneſs to ſoften the rigour of perpetual labour.