ə̇ˈstäp, eˈ- transitive verb
Etymology: Middle English estoppen, from Middle French estoper, estouper, from (assumed) Vulgar Latin stuppare, from Latin stuppa tow — more at stupe
1. archaic : to fill up : plug up : stop up
2. : preclude , bar , prohibit
sought to … estop fighting on Sundays — K.S.Latourette
if a person is pitch-deaf, he is estopped from the skillful use of inflectional change in his voice — A.T.Weaver
especially : to impede or bar by estoppel