Origin: 1900–05; prob. < F constat(er) to affirm, verify (appar. v. deriv. of L constat (it) is apparent, 3d sing. pres. of constāre;cf. constant) + -ive
con·sta·tive (kən-stā'tĭv, kŏn'stə-) adj. Relating to or being an utterance that asserts or states something that can be judged as true or false, such as The cat is on the mat. n. A constative utterance, such as an assertion.
[New Latin cōnstatīvus (translation of German konstatierend, present participle of konstatieren, to indicate as factual), from Latin cōnstāre, to stand firm, be fixed (influenced by third person sg. present tense cōnstat, it is manifest, it is a fact, and statīvus, stationary); see constant.]