Pronunciation: [ðe͡əwˈɪð] (IPA) 
The word "therewith" is spelled using the IPA phonetic transcription /ðɛr-wɪð/. The first part of the word, "there," is pronounced with a voiced dental fricative "ð" as in the word "this." The second part, "with," is pronounced with a voiceless dental fricative "θ" followed by the voiced dental fricative "ð." Overall, the word means "with that," and is often used to connect a statement or idea with something previously mentioned.
Therewith is an adverb that refers to an action or condition being accompanied or brought about by something previously mentioned or established. It is typically used to indicate a consequence, association, or implication of a specific circumstance.
In its most common usage, therewith refers to the literal correlation or connection between two things. For example, if someone says, "She opened the door and therewith entered the room," it means that the person entered the room immediately after opening the door.
Furthermore, therewith can also connote a figurative or abstract relationship. For instance, one might state, "He won the lottery, and therewith came a newfound sense of financial security." In this case, therewith implies that the sense of financial security was a direct result or consequence of winning the lottery.
Additionally, therewith can denote the inclusion or addition of something. For example, if someone states, "The package contained a letter, a document, and therewith a set of keys," it means that the set of keys was included along with the letter and document.
Overall, therewith adds clarity and specificity to a situation by emphasizing the connection, consequence, or addition of something previously mentioned or understood. It is a versatile adverb that facilitates effective communication by establishing associations and implications within a given context.
With that or this; forthwith.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
The word "therewith" is derived from Old English "þǣrwiþ" or "þǣrwīþ", which is a combination of "þǣr", meaning "there", and "wiþ", meaning "with". Over time, these elements merged to form the word "therewith". This term has been used since Middle English and has remained relatively unchanged in its meaning and form. It still signifies "with that" or "in addition to that".
