mid-12c. (transitive), possibly a northern English variant of Middle English schateren (see shatter), reflecting Norse influence. Intransitive sense from early 15c. Related: Scattered; scattering. As a noun from 1640s.
scatter scat·ter (skāt'ər)
v. scat·tered, scat·ter·ing, scat·ters
To cause to separate and go in different directions.
To separate and go in different directions; disperse.
To deflect radiation or particles.