Meaning

noun a powerful effect or influence

noun (physics) the influence that produces a change in a physical quantity

noun physical energy or intensity

originFrom Middle English force, forz, fors, from Old Norse fors (“waterfall”), from Proto-Germanic *fursaz (“waterfall”). Cognate with Icelandic foss (“waterfall”), Norwegian foss (“waterfall”), Swedish fors (“waterfall”). Doublet of foss.

Etymology from Wiktionary, CC BY-SA 3.0