IPA: /ðɛrˈbaɪ/
KK: /ðɛrˈbaɪ/
This word is used to indicate the result or consequence of something that has just been mentioned.
She completed her degree, thereby improving her job prospects.
Thereby → It is formed from "there" (from Old English "þær", meaning at that place) and "by" (from Old English "bi", meaning near or beside). The word "thereby" means by that means or as a result of that action at that place.
Think of 'there' as a specific place and 'by' as a way to indicate how something is done. This helps you remember that 'thereby' means as a result of something happening at that place.