promissory

 
Pronunciation: /ˈprɒmɪs(ə)ri/

adjective

  • 1chiefly Law conveying or implying a promise: statements that are promissory in nature promissory words
  • 2 archaic indicative of something to come; full of promise: the glow of evening is promissory of the splendid days to come

Origin:

late Middle English: from medieval Latin promissorius, from promiss- 'promised', from the verb promittere (see promise)