completive

adjective
UK /kəmˈpliːtɪv/
US /kəmˈpliːtɪv/

Something that finishes or completes a thing.

The final puzzle piece was completive, making the picture whole.


OTHER MEANINGS

2. In grammar, a word or phrase that completes the meaning of a verb or sentence.

In 'she made him happy,' the word 'happy' acts as a completive.

3. Having the quality of bringing something to a full or finished state.

The last chapter had a completive effect on the story.

4. Relating to an aspect of a verb that shows an action is finished.

Some languages use a completive marker to show the action is done.