Emily Dickinson Lexicon

CLATT'ER, v.i. [D. klateren, kletteren; W. clewtiaw; Sax. clatninge, a clattering. Qu. Fr. eclater; L. latro, to bark; Sax. hlyd, loud. It seems to be a diminutive.]

1. To make rattling sounds; to make repeated sharp sounds, as by striking sonorous bodies; as, to clatter on a shield. – Dryden.
2. To utter continual or repeated sharp sounds, or rattling sounds, by being struck together; as, clattering arms.
3. To talk fast and idly; to run on; to rattle with the tongue. – Spenser.