Correct spelling for the English word "Sixteenmo" is [sɪkstˈiːnmə͡ʊ], [sɪkstˈiːnməʊ], [s_ɪ_k_s_t_ˈiː_n_m_əʊ] (IPA phonetic alphabet).
Sixteenmo, also commonly known as 16mo, is a bibliographic term used to describe a specific book format. It refers to a type of book that has been printed and bound in a size smaller than the average octavo, typically measuring around 16 centimeters in height.
The word "sixteenmo" is derived from Latin, with "sexto decimo" translating to "sixteenth" in English. The term underscores the fact that these books are typically divided into sixteen leaves from a single sheet of paper, which means they are printed on smaller pages. This format allows for a more compact and portable book, making it convenient to carry around or hold comfortably in one's hands.
Sixteenmos originated in the mid-16th century and became increasingly popular throughout the 17th and 18th centuries. Many literary works, including novels, plays, poetry, and even scientific treatises, were printed in this format. Due to the smaller page size, more sheets were required to print a full-length book, which often resulted in longer print runs.
Today, while less commonly used compared to larger formats, sixteenmos are still occasionally produced for specific types of books, such as miniature editions, abridged versions, or pocket-sized volumes. The term "sixteenmo" is widely recognized and understood in the field of bibliographies and is used to categorize and classify books based on their size and format.
Among printers, a sheet folded into sixteen leaves, or thirty-two pages, usually abbreviated into 16mo.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
The word "sixteenmo" is derived from the combination of two elements: the prefix "sixteen-" and the suffix "-mo".
The prefix "sixteen-" comes from the Middle English word "sixtene", which is derived from the Old English word "sixtene", meaning "sixteen". This is further derived from the Proto-Germanic word "sehs-tēnhun", which combines "sehs" (six) and "tēnhun" (ten).
The suffix "-mo" is derived from the Latin word "in duō dedecimōrum", which means "in twelves". It was used to describe books that were printed on sheets of paper which were folded three times to create twelve leaves or twenty-four pages. The "-mo" suffix denoted the size or format of the book.