The story
From Latin resolutus (“released”), past participle of resolvō (“to release, to unbind”) (re- + solvō, whence solve). Compare typologically Russian реши́тельный (rešítelʹnyj) (< реши́ть (rešítʹ)).
Etymology from Wiktionary, CC BY-SA 4.0.
resolute
Today it means: Firm, unyielding, determined. Full definition →