The word for today is…
tome (noun):
1 : book especially : a large or scholarly book
2 : a volume forming part of a larger work
-tome (noun combining form)
1 : part, segment – e.g. myotome
2 : cutting instrument – e.g. microtome
Source : Merriam -Webster
Etymology : Tome comes from Greek tomos, meaning “section” or “roll of papyrus.” The Greek is related to the verb temnein, “to cut”; in ancient times, long scrolls of papyrus were divided into sections. When tome was first used in English, it referred to a book that was a part of a multi-volume work or a major part of a single-volume book.
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