Emily Dickinson Lexicon

THWART, v.t. [thwort.]

1. To cross; to belie or come across the direction of something. Swift as a shooting star / In autumn thwarts the night. Milton.
2. To cross, as a purpose; to oppose; to contravene; hence, to frustrate or defeat. We say, to thwart a purpose, design or inclination; or to thwart a person. If crooked fortune had not thwarted me. Shak. Thc proposals of the one never thwarted the inclinations of the other. South.