# thereby

> English word · Adverb · IPA /ðɛɹˈbaɪ/ · frequency rank #6,844

## Definitions
1. By it; by that; by that means, or as a consequence of that.

## Etymology
From Middle English therby, from Old English ðǣrbig, equivalent to there + by. Compare the parallel formation of German dabei.

## Easily confused with
- **theres** (https://plainspell.com/en/vs/thereby-vs-theres)
- **thereof** (https://plainspell.com/en/vs/thereby-vs-thereof)
- **Theresa** (https://plainspell.com/en/vs/thereby-vs-theresa)
- **therein** (https://plainspell.com/en/vs/thereby-vs-therein)
- **thereto** (https://plainspell.com/en/vs/thereby-vs-thereto)
- **thereon** (https://plainspell.com/en/vs/thereby-vs-thereon)
- **there** (https://plainspell.com/en/vs/there-vs-thereby)
- **there's** (https://plainspell.com/en/vs/there-s-vs-thereby)
- **therapy** (https://plainspell.com/en/vs/therapy-vs-thereby)
- **there'd** (https://plainspell.com/en/vs/there-d-vs-thereby)

## Common misspellings (11)
`htereby`, `tehreby`, `theerby`, `therbey`, `therebby`, `therebyy`, `thereyb`, `therreby`, `thhereby`, `threeby`, `tthereby`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/thereby