411 REFERENCE · Wiktionary
4to
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Etymology
From en la quārtō, ablative case singular of la quārtus fourth.
Noun
~
en paper en quarto, a paper size.
en printing en quarto, a corresponding book size.
Synonyms
paper size en 4º
book size en Q, en 4º
See also
en Book sizes Four Paper sizes