RhymeZone: overthwart definitions

Definitions of overthwart:

adverb: (archaic) From side to side.
adjective: (obsolete) Having a transverse position; placed or situated across; hence, opposite.
adjective: (obsolete) Crossing in kind or disposition.
noun: (obsolete) That which is overthwart; an adverse circumstance; opposition.

(Definitions from Wiktionary)