resolve
re-solve
noun
Firm determination to do something, especially when facing difficulties.
"Her resolve never wavered."
verb
To firmly decide to do something or find a solution to a problem.
"They resolved to work harder."
Thesaurus
Synonyms: resolution, firmness of purpose, resoluteness, firmness, break up, dissolve, purpose, declaration, solve, answer, conclude, settle
Antonyms: irresoluteness, irresolution