The act of appropriating; the process of taking something for one's own use or adapting it.
From 'appropriate' + the suffix '-ment,' which forms nouns indicating an action, process, or result.
This formal noun shows up in legal and academic writing when discussing how ideas, funds, or resources are 'appropriated'—it's the official term for the action of claiming something.
Complete word intelligence in one call. Free tier — 50 lookups/day.