determination
UK: dɪˌtɜːmɪˈneɪʃən | US: dɪˌtɜːrmɪˈneɪʃən
n. 1. The quality of being resolute; firmness of purpose.
n. 2. The process of establishing something exactly through calculation or research.
n. 3. A formal decision or conclusion.
The word "determination" traces back to Latin determinare ("to limit, settle"), combining de- (intensive prefix) and terminus ("boundary"). Originally, it referred to setting literal boundaries (e.g., land). Over time, it evolved metaphorically to signify "resolving" (setting mental boundaries) and later "firmness of purpose" (a settled decision). The suffix -ation nominalizes the action.
Her determination to succeed impressed everyone.
The determination of the chemical composition took weeks.
The court announced its determination on the case.
His determination never wavered despite setbacks.
Scientific determination requires precise measurements.