Explanation
Tmesis splits a word, fixed combination, or expression expected as a unit by inserting other linguistic material between its parts. Separation simultaneously makes the unit perceptible: the insertion surprises only because the divided parts are recognised as belonging together. Depending on the language, tmesis may affect morphological forms, particles, or idioms and may be grammatically regular, colloquially expressive, or poetically marked. The conceptual movement reconstructs the undivided form, identifies the inserted material, and tests whether splitting is systematically licensed or creates special emphasis as a creative interruption.
Movement of thought
1. Separated components are traced back to a conventionally unified source form. 2. The inserted material is characterised syntactically, prosodically, and semantically. 3. Language-specific rules show whether separation is regular or conspicuously marked. 4. Position and length of insertion explain humour, emphasis, rhythm, or emotional intensity. 5. An undivided comparison version reveals the added effect of interruption from within.
Scientific use case
Morphology, syntax, prosody research, poetics, and translation studies analyse tmesis through unit type, licensing, and insertion function. Cross-linguistic comparison prevents regular separability from being misclassified as rhetoric.
Example
A speaker divides a fixed evaluative form: “That is un—after everything we have examined—acceptable.” The insertion extends the moment before the final judgement arrives.
Counterexample
An ordinary separable-verb construction is not rhetorically tmetic in every context when grammar requires or normally permits the position. The figure depends on a perceptible splitting of an expected unit.
Distinction
Distinguish tmesis from hyperbaton, parenthesis, and regular verb separation. Tmesis splits an expected word or expression itself; hyperbaton more generally separates syntactically related elements.
Effect on thought and perception
Tmesis interrupts expectation inside a form and can create suspense, comedy, or emphatic delay. It makes the components of an otherwise closed unit newly perceptible.
Resonance
A linguistic unit opens and receives other material into its middle. Its divided parts remain connected across the insertion and reunite only after a delay.
Cite this entry
Reich, Michael (Hrsg./ed.): „Tmesis“. Atlas der Sprache, AT-HAR4-0012. ATLAS 260, data model 1.6.0. https://atlasoflanguage.com/concept/AT-HAR4-0012The address remains stable; editorial content may evolve. Editorial reading state: 2026-10-15. Include your access date for precise references.
Historical background
The historical examples include English forms in which material intervenes inside what would otherwise be an uninterrupted expression. Bullinger also lists neighbouring Greek names, including diacope, in this terminological setting. That is a warning against treating handbook synonym lists as timeless equivalences: elsewhere diacope is the repetition of an expression with an insertion between its occurrences, which is a different configuration. The Atlas should draw or describe the units before applying the name. Are the parts of one expression separated, or is a complete expression repeated around another unit? The historical witness helps reveal how both can be imagined through cutting while requiring distinct modern analyses. The effect of tmesis also depends on what a period or register recognises as a unit, so present-day spelling is not a sufficient historical test.
How conceptual history changes the analysis
Internal splitting and repetition with intervening material are different structures.