n.
Pronunciation: ' thwo ̇ rt
Function: transitive verb
Etymology: Middle English thwerten, from thwert, adverb
Date: 13th century
1 a : to run counter to so as to effectively oppose or baffle : CONTRAVENE b : to oppose successfully : defeat the hopes or aspirations of
2 : to pass through or across
synonyms see FRUSTRATE
– thwart · er noun