4to

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4to

Where it comes from

From Latin quārtō, ablative case singular of quārtus (“fourth”).

noun 4tos

abbreviation, countable, uncountable Abbreviation of quarto, a paper size.
Similar: 4º
abbreviation, countable, uncountable Abbreviation of quarto, a corresponding book size.
Similar: Q, 4º

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MLA

"4to." Wiktionary, via Micwyn, micwyn.com/word/4to. Accessed 6 Nov. 2026.

APA

4to. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/4to

Chicago

"4to." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/4to.

BibTeX

@misc{4to_2026,
  title = {4to},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/4to},
  urldate = {2026-11-06}
}