# thereby

Pronunciation: say "thair-BY" US /ðɛɹˈbaɪ/, UK /ðɛəˈbaɪ/

## Adverb

1. By that means or action, or as a consequence of what has just been mentioned.
   - Simple: As a result of that action, or by that means.
   - _The company merged with its largest rival, thereby gaining control of the market._
   - _He missed the registration deadline, thereby forfeiting his place in the competition._

## Origin

From Middle English therby, from Old English ðǣrbig, equivalent to "there" plus "by", a formation paralleled by German dabei.

Source: DictionaryAI, https://dictionaryai.com/define/thereby (written from Wiktionary data, CC BY-SA 4.0: https://creativecommons.org/licenses/by-sa/4.0/).