Definition of demy in English:

demy

(also metric demy)

noun

  • 1A paper size, now standardized at 564 × 444 mm.

    • ‘All books are in metric Demy format unless otherwise stated.’
    1. 1.1 A book size, now standardized at 216 × 138 mm.
      • ‘The first edition in English, of 1868, was in two volumes demy octavo, the only Murray Darwin to appear in this format, and it occurs in two issues.’
      • ‘Twenty-five large paper copies (22.6 x 14 cm, demy octavo) of Ballads and Sonnets were printed on Whatman's rag paper.’
      • ‘John Ruskin and the Lakeland Arts Revival 1880-1920, a sewn-section demy octavo paperback of 288 pages with a full-colour cover, will be published on 6 April 2004 at £14.95.’
      • ‘In any press, the most frequently used sizes of pages are demy quarto (1/4), demy octavo (1/8), crown quarto and crown octavo.’
      • ‘There are many standard formats – Metric Demy Octavo (216 x 138. mm) or Metric Crown Octavo (186 x 123 mm) are common ones.’
    2. 1.2 A book size, now standardized at 276 × 219 mm.
      • ‘In any press, the most frequently used sizes of pages are demy quarto (1.4), demy octavo (1/8), crown quarto and crown octavo.’
      • ‘The book is very nicely got up by the publisher in format metric demy 4to (280 mm × 216 mm; 11 in × 8.5 in) and expertly set by the author.’
      • ‘Those who consult bibliographies may need this information to identify books styled as foolscap folio, demy quarto, or with other such expressions of size and format occurring in early sources.’
      • ‘Reg, Following Pat's email, I think the old Hansard sizes were demy quarto but I could be mistaken.’

Origin

Late Middle English (as an adjective in the sense ‘half-sized’): from demi-, or from its source, French demi ‘half’.

Pronunciation

demy

/dəˈmaɪ//dəˈmī/