Is Word Order Responsive to Morphology? Disentangling Cause and Effect in Morphosyntactic Change in Five Western European Languages

This study examines the relationship between morphological complexity and word order rigidity, addressing a gap in the literature regarding causality in linguistic changes. While prior research suggests that the loss of inflectional morphology correlates with the adoption of fixed word order, this s...

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Main Authors: Julie Nijs, Freek Van de Velde, Hubert Cuyckens
Format: Article
Language:English
Published: MDPI AG 2025-01-01
Series:Entropy
Subjects:
Online Access:https://www.mdpi.com/1099-4300/27/1/53
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author Julie Nijs
Freek Van de Velde
Hubert Cuyckens
author_facet Julie Nijs
Freek Van de Velde
Hubert Cuyckens
author_sort Julie Nijs
collection DOAJ
description This study examines the relationship between morphological complexity and word order rigidity, addressing a gap in the literature regarding causality in linguistic changes. While prior research suggests that the loss of inflectional morphology correlates with the adoption of fixed word order, this study shifts the focus from correlation to causation. By employing Kolmogorov complexity as a measure of linguistic complexity alongside Granger Causality to examine causal relationships, we analyzed data from Germanic and Romance languages over time. Our findings indicate that changes in morphological complexity are statistically more likely to cause shifts in word order rigidity than vice versa. The causal asymmetry is robustly borne out in Dutch and German, though waveringly in English, as well as in French and Italian. Nowhere, however, is the asymmetry reversed. Together, these results can be interpreted as supporting the idea that a decline in morphological complexity causally precedes a rise in syntactic complexity, though further investigation into the underlying factors contributing to the differing trends across languages is needed.
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spelling doaj-art-fd7cab8f8c554c81916080ee51053caf2025-01-24T13:31:49ZengMDPI AGEntropy1099-43002025-01-012715310.3390/e27010053Is Word Order Responsive to Morphology? Disentangling Cause and Effect in Morphosyntactic Change in Five Western European LanguagesJulie Nijs0Freek Van de Velde1Hubert Cuyckens2Department of Linguistics, KU Leuven, 3000 Leuven, BelgiumDepartment of Linguistics, KU Leuven, 3000 Leuven, BelgiumDepartment of Linguistics, KU Leuven, 3000 Leuven, BelgiumThis study examines the relationship between morphological complexity and word order rigidity, addressing a gap in the literature regarding causality in linguistic changes. While prior research suggests that the loss of inflectional morphology correlates with the adoption of fixed word order, this study shifts the focus from correlation to causation. By employing Kolmogorov complexity as a measure of linguistic complexity alongside Granger Causality to examine causal relationships, we analyzed data from Germanic and Romance languages over time. Our findings indicate that changes in morphological complexity are statistically more likely to cause shifts in word order rigidity than vice versa. The causal asymmetry is robustly borne out in Dutch and German, though waveringly in English, as well as in French and Italian. Nowhere, however, is the asymmetry reversed. Together, these results can be interpreted as supporting the idea that a decline in morphological complexity causally precedes a rise in syntactic complexity, though further investigation into the underlying factors contributing to the differing trends across languages is needed.https://www.mdpi.com/1099-4300/27/1/53Kolmogorov complexityGranger causalitymorphological complexityword order rigiditydiachronic linguistics
spellingShingle Julie Nijs
Freek Van de Velde
Hubert Cuyckens
Is Word Order Responsive to Morphology? Disentangling Cause and Effect in Morphosyntactic Change in Five Western European Languages
Entropy
Kolmogorov complexity
Granger causality
morphological complexity
word order rigidity
diachronic linguistics
title Is Word Order Responsive to Morphology? Disentangling Cause and Effect in Morphosyntactic Change in Five Western European Languages
title_full Is Word Order Responsive to Morphology? Disentangling Cause and Effect in Morphosyntactic Change in Five Western European Languages
title_fullStr Is Word Order Responsive to Morphology? Disentangling Cause and Effect in Morphosyntactic Change in Five Western European Languages
title_full_unstemmed Is Word Order Responsive to Morphology? Disentangling Cause and Effect in Morphosyntactic Change in Five Western European Languages
title_short Is Word Order Responsive to Morphology? Disentangling Cause and Effect in Morphosyntactic Change in Five Western European Languages
title_sort is word order responsive to morphology disentangling cause and effect in morphosyntactic change in five western european languages
topic Kolmogorov complexity
Granger causality
morphological complexity
word order rigidity
diachronic linguistics
url https://www.mdpi.com/1099-4300/27/1/53
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