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Using Temporal Stability to Probe the Syllabification of Medial Geminates: Evidence from Moroccan Arabic

Paper · 2026 · Ali Nirheche

Summary

The paper asks whether a medial geminate (a long, doubled consonant inside a word) is split across a syllable boundary (heterosyllabic, VCᵢ.CᵢV) or sits entirely in one syllable (tautosyllabic, V.CᵢCᵢV). The author applies temporal stability, a diagnostic that until now has mostly been used for consonant clusters at the start of words. Each parse predicts a different timing anchor. If the geminate is one unit, its overall midpoint should keep a constant distance to the end of the following vowel. If it is two timing units, only its second half should keep that distance. Moroccan Arabic was chosen because phonological evidence from poetic meter, schwa epenthesis and minimal word size already points to a heterosyllabic parse. Using acoustic landmarks in the style of Durvasula et al. (2021), the study compares medial geminates with medial clusters in real words. Both pattern as right-edge-to-anchor, which supports a heterosyllabic analysis. Because this outcome matches the independent phonological evidence, the paper argues that the method is a usable phonetic test for competing analyses of geminates.

Key points

  • The two diagnostic patterns are c-centre-to-anchor, which indicates a complex onset, and right-edge-to-anchor, which indicates that only the last consonant is the onset. Following Shaw et al. (2009), each is defined by its distance to the end of the following vowel.
  • The study uses acoustic measures (bursts, vowel onset, formant transitions) instead of EMA. Compared with the EMA study of Gafos et al. (2020), it has more speakers and uses only real-word stimuli.
  • Medial geminates and medial clusters both show right-edge-to-anchor timing. There was no significant shortening of the vowel before either, so vowel duration does not seem to be a reliable syllabification cue in Moroccan Arabic.
  • The method has a limit. A right-edge result rules out the tautosyllabic parse but cannot tell whether the first half of the geminate is a coda or a degenerate syllable. The sonority analysis also left out falling-sonority clusters.
  • Data, scripts and materials are available at osf.io/26mpq. The paper appeared in Glossa 11(1), 2026.

Interesting ideas

  • I1. Calibrate on a settled case first. The new diagnostic is tested on a language where the answer is already established, so agreement validates the tool itself and not just the analysis.
  • I2. Turn rival analyses into distinct measurable predictions. Before collecting data, each competing representation is mapped to a different observable signature.
  • I3. Validate a cheap proxy against an expensive measurement. Acoustic landmarks stand in for articulatory recordings, which makes it possible to test many more speakers.
  • I4. Split a unit into parts and test which part behaves stably. The geminate is treated as two halves, and the study checks which half aligns with a reference class (clusters).
  • I5. State what a result does not decide. The author is explicit that a right-edge pattern leaves two parses open.

For Mova

How these ideas could serve Mova, our small open language model — its files, stages and tests:

  • I1 (learn): New silver-data agreement metrics or repair rules could first be run on constructions with known gold analyses, and adopted only if they reproduce those known answers.
  • I2 (tree): When choosing between UD dialect conventions for a construction, each option could be linked to a concrete downstream consequence, such as frame extraction stability, and the options compared on that measure.
  • I3 (learn): Cheap witness parsers or lower LLM teacher tiers could be checked against a small expensive gold set, then used to scale data collection.
  • I4 (tokens): Contractions and multiword tokens could be split, and each part checked for whether it behaves like its standalone counterpart, to decide how the tokenizer should segment it.
  • I5 (world): The world model could keep explicitly underdetermined alternatives, such as an ambiguous event order or referent, so it does not silently commit to one, which keeps later answers explainable.

Our summary of the paper, in our own words — not its text. The work belongs to its authors; read it at the links above.

 Institutions

🎓University of Massachusetts AmherstAmherst Center · United States67 works · 64,591 citations

📚 Shelves 5 Arts and Humanities · 9,296 works Language and Linguistics · 9,206 works Psychology · 798 works Experimental and Cognitive Psychology · 463 works Developmental and Educational Psychology · 260 works

🧭 Topics 1 Semitic languages · 1,484 works

Cite

Cite as Ali Nirheche. 2026. Using Temporal Stability to Probe the Syllabification of Medial Geminates: Evidence from Moroccan Arabic. Glossa: a journal of general linguistics.

The paper itself, not this page. BibTeX from the library's record of the work. DOI 10.16995/glossa.26364

@article{nirheche2026using,
  title = {{Using Temporal Stability to Probe the Syllabification of Medial Geminates: Evidence from Moroccan Arabic}},
  author = {Ali Nirheche},
  journal = {Glossa: a journal of general linguistics},
  year = {2026},
  doi = {10.16995/glossa.26364},
  url = {https://doi.org/10.16995/glossa.26364}
}

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