gathering and collecting a large amount of something over time.
From Middle French 'amasser,' combining 'a-' (to) and 'masse' (mass or heap), itself from Latin 'massa.' The sense of piling things up is built right into the root.
Your brain naturally amasses memories through repetition—neuroscientists discovered that this same word describes how neural connections strengthen, making 'amassing' as much a biological process as a financial one.
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