ESTOP Meaning of ESTOP in English v.tr. (estopped, estopping) (foll. by from) Law bar or preclude, esp. by estoppel. Derivatives: estoppage n. Etymology: ME f. AF, OF estoper f. LL stuppare stop up f. L stuppa tow: cf. STOP, STUFF Oxford English vocab. Оксфордский английский словарь. 2012