a book size of about 9½ × 12 inches (24 × 30 cm), determined by folding printed sheets twice to form four leaves or eight pages. Symbol: 4to, 4°.
2.
a book of this size.
adjective
3.
bound in quarto.
Origin
1580-90; short for Neo-Latinin quartō in fourth (quartō, ablative singular of quartusfourth)
Examples from the web for quarto
But the quarto text has an additional brief exchange between two other nameless servants.
British Dictionary definitions for quarto
quarto
/ˈkwɔːtəʊ/
noun (pl) -tos
1.
a book size resulting from folding a sheet of paper, usually crown or demy, into four leaves or eight pages, each one quarter the size of the sheet Often written 4to, 4°
2.
(formerly) a size of cut paper 10 in. by 8 in. (25.4 cm by 20.3 cm)
Word Origin
C16: from New Latin phrase in quartō in quarter
Word Origin and History for quarto
n.
"book from paper folded to make four pages to the sheet," late 15c., from Medieval Latin in quarto "in the fourth (part of a sheet of paper)," from quarto, ablative singular of Latin quartus "fourth" (see quart).