Definition of completive in English:

completive

noun

Grammar
  • A word or morpheme that adds a sense of completeness to a word or phrase (e.g., up in the phrase break up)

    • ‘Particles are added, usually as completives and intensives, to two and three-syllable verbs of Latin origin: contract out, divide off/up, level off, measure off/out, select out, separate off/out.’
    • ‘Google has 29,900,000 pages in which ‘completed’ occurs, and only one example of ‘completed it up’ in the completive sense, from a knitting site.’

Pronunciation:

completive

/kəmˈplēdiv/