demonstrable

The word 'demonstrable' has a clear logical path from its concrete Latin origins to its modern abstract meaning. It derives from the Latin verb demonstrare, meaning "to point out, show, or prove", which itself is a compound of de- (completely) and monstrare (to show). The suffix -bilis was added in Latin to form the adjective demonstrabilis, meaning "that can be shown or proved". This term passed into Middle English via Old French, retaining its core sense of evidence and proof. The modern meaning directly follows this lineage, describing something capable of being clearly and logically shown or proven, maintaining the original link between demonstration and verifiable truth.

Structure: demonstra (show) + ble (able to be) - demonstra: From Latin demonstrare (to point out, show, prove). A verb-forming element. - ble: A suffix of English adjectives, from Latin -bilis, indicating capacity or worthiness. Means "able to be".