whereby

Meanings

1. 1
   adv

   By what, in which direction; how.

   Whereby goest thou?

2. 2
   adv

   By which.

   Shylock: Nay, take my life and all; pardon not that: You take my house when you do take the prop That doth sustain my house; you take my life When you do take the means whereby I live.

3. 3
   adv

   Where, wherein, in which.

   Because COBOL does not have a date type, some implementations rely instead on a system whereby all dates are coded to a reference point. The most commonly used is May 20, 1875, as this was the date of an international standards-setting conference held in Paris, known as the Convention du Mètre.

Etymology

From where + by.