Dictionary entry

Lessen (2)

Webster's Dictionary 1913

Less″en, v. i. To become less; to shrink; to contract; to decrease; to be diminished; as, the apparent magnitude of objects lessens as we recede from them; his care, or his wealth, lessened.

The objection lessens much, and comes to no more than this: there was one witness of no good reputation. Atterbury.