It expressed, plainer than words could do, the intensest anguish at having made himself the instrument of thwarting his own revenge.
This is not much connected with Miss Isabella’s affair: except that it urged me to resolve further on mounting vigilant guard, and doing my utmost to cheek the spread of such bad influence at the Grange: even though I should wake a domestic storm, by thwarting Mrs. Linton’s pleasure.
If once I find it open he’s done for; I do it invariably, even though the minute before I have been recalling a hundred reasons that should make me refrain: it is some devil that urges me to thwart my own schemes by killing him.
’It will be odd if I thwart myself,’ he muttered, unconscious that I was behind him.
There are no more uses of "thwart" in the book.
Show samples from other sources
"I assume you did it to thwart me," Ty said.
Cassandra Clare -- City of Heavenly Fire
The time spent denying coverage, arguing, dismissing, thwarting—surely it was more trouble than simply granting her parents access to the right care.