supposition

UK: ˌsʌpəˈzɪʃ(ə)n | US: ˌsʌpəˈzɪʃ(ə)n

Definition
  1. n. 1. An assumption or hypothesis formed without conclusive evidence.

  2. n. 2. The act of supposing; the mental act of considering something as possible.

Structure
sup <under>pos <place>ition <noun suffix>sup <under>pos <place>ition <noun suffix>
Etymology

supposition = sup<under> + pos<place> + ition<noun suffix>

  • sup<under>: From Latin sub- (under, below), implying a foundational or underlying idea.
  • pos<place>: From Latin ponere (to place), suggesting the act of positioning an idea mentally.
  • ition<noun suffix>: Forms abstract nouns indicating an action or state.

Etymology Origin:
Derived from Latin suppositio (a placing under, substitution), via Old French supposicion. The word evolved from the literal sense of "placing beneath" to the abstract notion of "assuming as a basis for reasoning." The morphemes reflect the logic of grounding an idea (pos) hypothetically (sup), formalized into a concept (ition).

Examples
  1. His argument was based on mere supposition rather than facts.

  2. The theory remains a supposition until further evidence is found.

  3. She acted on the supposition that he would agree.

  4. Scientific progress often begins with a bold supposition.

  5. The judge dismissed the case due to its reliance on supposition.