# Valency Classification of Mapudungun Verbal Roots. Established by the language's own morphotactics

arXiv: https://arxiv.org/abs/2604.00789 · HTML: https://mlsanity.com/paper/2604.00789/

## Key facts

- No citing papers in the map yet (data through 14 Oct 2026).
- Builds on 2 of its 29 references that are in the map.
- First posted on arXiv 1 Apr 2026.

## Builds on (most cited first, 2 of 2)

- [FST Morphological Analyser and Generator for Mapud"ungun](https://mlsanity.com/paper/2109.09176/) (2021)
- [Lexical categories of stem-forming roots in Mapud"ungun verb forms](https://mlsanity.com/paper/2502.07623/) (2025)

## Abstract (arXiv)

In the previous work, a lexical (re)categorisation -- or confirmation of the given category -- of roots identified as verbal was undertaken to determine their original category accurately. Building on this, the present paper offers an account of the valency classification of those Mapudungun roots confirmed to be verbal, using the language's own morphotactics; specifically, by examining the permissible and restricted combinations of various suffixes with roots or verbal stems in the Mapuche verb form. As with all work conducted thus far, the results presented here aim to improve the morphological analyser (Dungupeyum) with all verified findings incorporated into the system. From a theoretical perspective, we also hope to contribute to the recognition and understanding of issues related to the valency of Mapuche verb forms.