Webster's Revised Unabridged Dictionary
OF. estoveir, estovoir, necessary, necessity, need, prop. an infin. meaning to suit, be fit, be necessary. See Stover
Chambers's Twentieth Century Dictionary
O. Fr. estovoir, necessaries.
The various kinds of estovers were thus known as house-bote, cart or plough-bote, hedge or hay-bote, and fire-bote respectively.
"Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 7" by Various