wherein Meaning, Definition & Usage

Where*in" adverb
Definitions
  1. In which; in which place, thing, time, respect, or the like; -- used relatively.
    Her clothes wherein she was clad. Chaucer.
    There are times wherein a man ought to be cautious as well as innocent. Swift.
  2. In what; -- used interrogatively.
    Yet ye say, Wherein have we wearied him! Mal. ii. 17.

Webster 1913