We present six reproducible statistical tests on the text of the Voynich Manuscript (MS 408, Yale Beinecke Library), based on the IVTFF interlinear transcription corpus. All tests are computed from the transcription alone, with no dependence on visual analysis of illustrations or assumed decipherment. The results are collectively consistent with a pharmaceutical interpretation of the manuscript's content: (1) morphological prefix frequencies are stable across two independent transcribers (all 11 tested prefixes within 4% divergence); (2) a binary morphological gap exists between two prefix families (s- nominal vs. sh- processual), with the token sedy attested exactly 0 times against shedy at 424; (3) a 26:0 asymmetric lexical reuse pattern between the Pharmaceutical and Stars sections is compatible with functional dependency; (4) word-order analysis reveals a statistically significant tendency for completion markers to appear in the final 20% of lines (Z=26.6); (5) six manuscript sections exhibit systematically distinct morphological profiles consistent with specialized functional registers; (6) the proportion of an infixed morpheme (ee) across solvent-prefix families replicates the pharmacologically expected volume hierarchy (one rank swap between oil and spirit; Spearman ρ = 0.900, p = 0.042, one-tailed). Version history: v1.2 (March 26, 2026) — Seven targeted revisions improving clarity, replicability, and statistical precision. Key updates: two-tailed p-value corrected from 0.050 to 0.083; sub-folio counting rule made explicit; COMPL > MAT priority declared; permutation test footnote added (p = 0.0002); companion report reference added (DOI: 10.5281/zenodo.19228231). v1.1 (March 23, 2026) — Initial public release.
Alessandro Placa (Thu,) studied this question.