Amass (verb)

1. Gather together or accumulate (a large amount of something).
2. To collect a large quantity of something over time.

Origin:

Early 16th century (in the sense "collect in a heap"): from a- (expressing completeness) + mass "a heap".

Examples:

1. He amassed a large fortune through his business.
2. She amassed a vast collection of art.
3. He amassed a great deal of knowledge on the subject.
4. She amassed a huge amount of data for her research.
5. He amassed a significant amount of wealth over the years.