estovers
Concise Oxford English Dictionary © 2008 Oxford University Press:
estovers /ɪˈstəʊvəz, ɛ-/
▶plural noun (usu. common/right of estovers) Brit., chiefly historical the right to take wood for fuel, repairs, or other necessary purpose from land which one does not own, especially land of which one is the tenant or lessee.
– origin C15: from Anglo-Norman Fr. estover ‘be necessary’, based on L. est opus ‘it is necessary’.
'estovers' also found in these Oxford entries:

