Word History
First Known Use
14th century, in the meaning defined above
Time Traveler
The first known use of thereinto was
in the 14th century
Dictionary Entries Near thereinto
Cite this Entry
“Thereinto.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/thereinto. Accessed 2 Oct. 2023.
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