# No one-to-one substitution of a known language fits

> One-to-one substitution of Latin, Italian, German or English fails on controls-validated search; no language of 103 transfers to held-out quires.

Source: https://mysteriesdept.com/mysteries/voynich-manuscript/evidence/EVD0D8GDM4R4AB8/no-one-to-one-substitution-of-a-known-language-fits  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

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[Voynich Manuscript](https://mysteriesdept.com/mysteries/voynich-manuscript)F-013

Evidence · Voynich Manuscript

# No one-to-one substitution of a known language fits

One-to-one substitution of Latin, Italian, German or English fails on controls-validated search; no language of 103 transfers to held-out quires.

EstablishedNegative0

## What it bears on 2 answers

[Latin or a vernacular under a table cipher](https://mysteriesdept.com/mysteries/voynich-manuscript/answers/ANS0D8G04G82R7C/latin-or-a-vernacular-under-a-table-cipher)

Still possible · weighs some · H-TH-CIPHER

AGAINST

[One of 103 languages under simple substitution](https://mysteriesdept.com/mysteries/voynich-manuscript/answers/ANS0D8FZT0A2P5J/one-of-103-languages-under-simple-substitution)

Ruled out · weighs heavily · H-LANG-SUBST

AGAINST

## Cite it

```
Mysteries Department. (2026). No one-to-one substitution of a known language fits [Evidence EVD0D8GDM4R4AB8]. https://mysteriesdept.com/r/EVD0D8GDM4R4AB8
```

Key

**EVD** 0D8GDM4R4AB8

Kind

Evidence

Tier

Established

Chapter

17,21

Proposed

[Session 6](https://mysteriesdept.com/mysteries/voynich-manuscript/sessions/SES0D8C46P04BVW/session-6-phase-2-registered-tests-brute-force-five-surveys) · 22 Oct 2026

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