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Tmesis

Tmesis 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 Tmesis rather than just read about it. In short: Tmesis is either the dividing of a word into two parts, with another word inserted between those parts, thus forming a compound word, or, in a broader sense, a set phrase, such as a phrasal verb, with one or more words interpolated within, thus creating a separate phrase. Verbs Tmesis of prefixed verbs (whereby the prefix is separated from the simple verb) was thought to be an original feature of the Ancient Greek l…

Key takeaways

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

Reference excerpt

Tmesis is either the dividing of a word into two parts, with another word inserted between those parts, thus forming a compound word, or, in a broader sense, a set phrase, such as a phrasal verb, with one or more words interpolated within, thus creating a separate phrase.

Verbs Tmesis of prefixed verbs (whereby the prefix is separated from the simple verb) was thought to be an original feature of the Ancient Greek language, common in the works of Homer (and later poetry), but not used in Attic prose. Such separable verbs are also part of the normal grammatical usage of some modern languages, such as Dutch and German.

Ancient Greek

Tmesis in Ancient Greek is something of a misnomer, since there is not necessarily a splitting of the prefix from the verb; rather, the consensus now seems to be that the separate prefix or pre-verb reflects a stage in the language where the prefix had not yet joined onto the verb. There are many examples in Homer's epics, the Iliad and the Odyssey, both of which preserve archaic features. One common and oft-cited example is κατὰ δάκρυα λείβων (kata dakrua leibōn; "shedding tears"), in which the pre-verb/prefix κατά- kata- "down" has not yet joined the verbal participle λείβων leibōn "shedding". In later Greek, these would combine to form the compound verb καταλείβων kataleibōn "shedding (in a downwards direction)".

Latin Tmesis is found as a poetic or rhetorical device in classical Latin poetry, such as Ovid's Metamorphoses. Words such as circumdare ("to surround") are split apart with other words of the sentence in between, e.g. circum virum dant: "they surround the man" (circumdant (circum- prefix + dant)). This device is used in this way to create a visual image of surrounding the man by means of the words on the line. In the work of the poet Ennius, the literal splitting of the word cerebrum creates a vivid image: saxo cere comminuit brum "he shattered his brain with a rock."

Old Irish Tmesis can be found in some early Old Irish texts, such as Audacht Morainn (The Testament of Morann). Old Irish verbs are found at the beginning of clauses (with VSO word order) and often possess prepositional pre-verbal particles, e.g. ad-midethar (ad- prefix) "evaluates, estimates". Tmesis occurs when the pre-verbal particle is separated from the verbal stem and the verbal stem is placed in clause final position while the pre-verbal particle/prefix remains at the beginning of the clause. This results in abnormal word order, e.g. ad- cruth caín -cichither "[the] fair form will be seen" (where ad-chichither is the future third-person singular passive of ad-cí "sees").

Old Norse Examples of tmesis have been found in skaldic poetry. In addition to the use of kennings, skalds used tmesis to obscure the meaning of the poem. One use of tmesis was to divide the elements of personal names.

English Numerous English words are colloquially intensified with the vulgar element -fucking-, such as unfuckingbelievable or fanfuckingtastic; or with variants such as -bloody- (un-bloody-believable, abso-bloody-lutely). This is known as expletive infixation. Tmesis often does not occur between a prefix and the root, but inside the root itself, as seen above in absobloodylutely and fanfuckingtastic.

Phrasal verbs English employs a large number of phrasal verbs, consisting of a core verb and a particle; placing a word between them is sometimes called tmesis. For example:

Turn off the light OR Turn the light off. Hand in the application OR Hand the application in. When the object of the verb is 'it', tmesis is the norm, with turn it off and hand it in being nearly obligatory; *hand in it is only possible with contrastive intonation. Such tmesis can also occur with an intransitive phrasal verb, typically with an adjunct. For example:

Come back tomorrow OR Come on back tomorrow. Let's head out OR Let's head right out.

See also Infix Interfix Affix Clitic Diacope Lexical diffusion Portuguese personal pronouns § Syntax on future verbs Separable verb Split infinitive

Notes

References

Worked examples

Example 1 — a first encounter with Tmesis

Start with the simplest possible case. Write down what Tmesis 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 Tmesis 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 Tmesis 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 Tmesis

In research
Tmesis 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 Tmesis 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
Tmesis is common in secondary-school and first-year university syllabi. It links to neighbouring topics Figures of speech, Infixes, Poetic devices, so understanding it makes those chapters shorter.
In everyday life
Look for Tmesis 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.

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How to study Tmesis in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Tmesis 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 Tmesis out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Tmesis in simple terms?

Tmesis is either the dividing of a word into two parts, with another word inserted between those parts, thus forming a compound word, or, in a broader sense, a set phrase, such as a phrasal verb, with one or more words interpolated within, thus creating a separate phrase. Verbs Tmesis of prefixed v…

Why does Tmesis 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 Tmesis?

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 Tmesis.

Tags

  • Figures of speech
  • Infixes
  • Poetic devices
  • Rhetoric
  • Word order

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