1508, in the meaning defined above
Time Traveler for Janus
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From the Editors at Merriam-Webster
'Janitor': A Word History
The One Who Holds All the Keys
These words are their own opposites
Cite this Entry
“Janus.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Janus. Accessed 23 Jan. 2022.
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