ArticleslgStudy

science

Pinault's law

Pinault's law is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Pinault's law rather than just read about it. In short: Pinault's law ( pee-NOH) is a Proto-Indo-European (PIE) phonological rule named after the French Indo-Europeanist Georges-Jean Pinault who formulated the modern understanding of the law. The phenomenon was first noticed by Jacob Wackernagel, who—in his 1896 work Altindische Grammatik—described what was then referred to as schwa deletion.

Key takeaways

  • Pinault's law belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Pinault's law to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Pinault's law from memory before moving on to harder problems.

Reference excerpt

Pinault's law ( pee-NOH) is a Proto-Indo-European (PIE) phonological rule named after the French Indo-Europeanist Georges-Jean Pinault who formulated the modern understanding of the law. The phenomenon was first noticed by Jacob Wackernagel, who—in his 1896 work Altindische Grammatik—described what was then referred to as schwa deletion. Wackernagel originally cited the example of the Sanskrit root vad(i)- ("to speak"), which has forms such as uditá ("said, spoken") besides udyáte. This particular root is no longer necessarily an example of Pinault's law, as the PIE root is now sometimes reconstructed as *h₂wed-, without a laryngeal, though it is also reconstructed by some as *h₂wedH-. Nevertheless, in a 1982 publication, Pinault himself provided additional examples of the sound law, and developed a revised version of the rule adapted to modern laryngealist theory. It is this updated version that is now accepted as Pinault's law. According to this rule, PIE laryngeals disappear word-medially between an underlying non-syllabic consonant (i.e. an obstruent or sonorant) and *y. Examples can be seen in the formation of imperfective verbs by appending *-yeti to the stem. Compare:

PIE root *werh₁- 'to say' → imperfective *wéryeti 'to be saying' (cf. Ancient Greek εἴρω, eirō, 'to tell') PIE root *h₂erh₃- 'to plow' → imperfective *h₂éryeti 'to be plowing' (cf. Old Irish airid 'to be plowing') PIE root *sneh₁- 'to spin' → imperfective *snéh₁yeti 'to be spinning' (cf. Old Irish sníid, 'to spin'). Here the laryngeal */h₁/ is not deleted since it is preceded by a vowel. The linguist Andrew Byrd argues that Pinault's law was motivated by an aversion to palatalized pharyngeals. The *h₂ and *h₃ are often, though not universally, thought to represent pharyngeal consonants, in which case they would approximate a palatalized pharyngeal when adjacent to *y. Palatalized pharyngeals are extremely difficult to articulate, and consequently they are rare cross-linguistically, with Byrd noting that a survey of 693 languages found no examples of such phonemes in any language's sound inventory. Avoidance of *H + *y sequences must have only applied should the two sounds have occurred in the same syllable, as other reconstructable PIE words clearly showcase heterosyllabic *Hy clusters, such as in the verb *(s)téh₂yeti ("to steal"). This particular word may have been syllabified as *[(s)tah₂]σ[ye-], whereas a form such as *sokʷyós (perhaps from *sokʷh₂ṓy) may have emerged from underlying *[sokʷ]σ[h₂yo-]. Words such as *dh₂yétor (whence Sanskrit dáyate) and *(s)ph₂yéti (whence Ancient Greek σπάω (spáō)) may have escaped the action of Pinault's law due to schwa epenthesis in *(C)CHC sequences, according to which they should have been realized as [dəh₂yétor] and [(s)pəh₂yeti]. If this version of Pinault's law is accepted, then it must have only applied to *h₂ and *h₃, as *h₁ was probably a glottal consonant. This rendition of the rule would explain the retention of the laryngeal in forms such as Latin secō ("to cut"), which may reflect *sekh₁-ye-ti. According to this interpretation, the only permissible word-initial *Hy sequence was *h₁y, which would naturally entail that all initial *Hy sequences are to be reconstructed as such. This would not necessarily disprove the reconstruction of forms such as *h₂y-(e)w-gʷih₃- on the basis of reflexes such as Ancient Greek ὑγιής ("hugiḗs;" sound, healthy); it would merely require that these forms have surfaced as *y(e)wgih₃ in PIE on account of Pinault's law and the boukolos rule.

See also Glossary of sound laws in the Indo-European languages

References

Bibliography Byrd, Andrew Miles (2 June 2015). The Indo-European Syllable. Brill's Studies in Indo-European Languages & Linguistics. Vol. 15. Leiden, Boston: Brill. doi:10.1163/9789004293021. ISBN 978-90-04-29302-1. Ringe, Don (2017). From Proto-Indo-European to Proto-Germanic. A Linguistic History of English. Vol. 1 (2nd ed.). Oxford University Press. pp. 16–17. doi:10.1093/OSO/9780198792581.001.0001. ISBN 978-0-19-879258-1. OCLC 972772031. OL 27415350M.

Further reading

Worked examples

Example 1 — a first encounter with Pinault's law

Start with the simplest possible case. Write down what Pinault's law claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Pinault's law before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Pinault's law ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Pinault's law

In research
Pinault's law appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Pinault's law in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Pinault's law is common in secondary-school and first-year university syllabi. It links to neighbouring topics Indo-European language stubs, Indo-European sound laws, Phonology stubs, so understanding it makes those chapters shorter.
In everyday life
Look for Pinault's law outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “Pinault's law” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Pinault's law in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Pinault's law means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Pinault's law out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Pinault's law in simple terms?

Pinault's law ( pee-NOH) is a Proto-Indo-European (PIE) phonological rule named after the French Indo-Europeanist Georges-Jean Pinault who formulated the modern understanding of the law. The phenomenon was first noticed by Jacob Wackernagel, who—in his 1896 work Altindische Grammatik—described what…

Why does Pinault's law matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Pinault's law?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Pinault's law.

Tags

  • Indo-European language stubs
  • Indo-European sound laws
  • Phonology stubs

Keep exploring