Explanation
Dissimilation is a change that makes sounds less similar in a relevant property. The segments may be adjacent or separated. A historical change between stages must be distinguished from a productive pattern in the current system. The link to haplology also requires identifying what changes: a sound may alter a feature, whereas haplology removes a similar syllable from a sequence. Similarity avoidance can connect descriptions but cannot substitute for analysis of the particular process.
Movement of thought
1. Identify the compared segments. 2. Specify the relevant feature. 3. Compare input and output. 4. Check sound change separately from syllable deletion.
Scientific use case
A historical study could compare dated variants, while a synchronic experiment could compare controlled sound environments; these evidence types remain distinct.
Example
In the constructed schema /r…r/ → /l…r/, two identical liquids become less alike in manner. This is not a datum from a particular language.
Counterexample
Accidental difference between two sounds is not dissimilation. A justified relation between input, environment and change is needed.
Distinction
Distinguish assimilation, metathesis and arbitrary deletion. Classifying haplology as dissimilatory requires an explicit analysis.
Effect on thought and perception
The term supports a precise description of sounds becoming less alike.
Resonance
A sound gains distance from its neighbour without leaving the relation.
Provenance
Parallel source review reconciled 2026-10-07; human specialist review not claimed.
Cite this entry
Reich, Michael (Hrsg./ed.): „Dissimilation“. Atlas der Sprache, AT-NAV-G02-037. ATLAS 259, data model 1.6.0. https://atlasoflanguage.com/concept/AT-NAV-G02-037The address remains stable; editorial content may evolve. Editorial reading state: 2026-10-15. Include your access date for precise references.