The noun augment means to increase the size or value of something by adding something to it.

Synonyms are amplify, boost, build up, or develop.

The word origins from Old French (14th century) augmenter meaning “increase, enhance”, and from Late Latin augmentare meaning “to increase”. It also comes from Latin augmentum meaning “an increase, growth”, from augere meaning “to increase, make big, enlarge, enrich”, from PIE root *aug- meaning “to increase”.

She is looking for jobs to augment his income.

The goal is to augment the communication during collaborative learning.

Can you augment the customers of the company?