amasser


a·mass

A0239700 (ə-măs′)v. a·massed, a·mass·ing, a·mass·es v.tr.1. To gather together or accumulate a large quantity of (something): amass evidence; amass a fortune.2. To be the site of (an increasing mass), especially as a result of neglect: How long has the desk been amassing bills?v.intr. To come together; collect: troops amassing on the border. See Synonyms at gather.
[Middle English, to accumulate, from Old French amasser, to assemble : a-, to (from Latin ad-; see ad-) + masser, to gather together (from Latin massa, lump, mass; see mass).]
a·mass′a·ble adj.a·mass′er n.a·mass′ment n.