Origin: Middle English quair from Old French quaer, book of loose pages from Vulgar Latin quaternum, paper packed inch(es) lots of four pages from Classical Latin quaterni, four each: see quaternary
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- Abbr. qr. or q. A set of 24 or sometimes 25 sheets of paper of the same size and stock; one twentieth of a ream.
- A collection of leaves of parchment or paper, folded one within the other, in a manuscript or book.
Origin: Middle English quayer, four double sheets of paper, from Old French quaer, from Vulgar Latin *quaternus, from Latin quaternī, set of four, four each, from quater, four times; see kwetwer- in Indo-European roots.
noun & v. Archaic