This article shows how the unearthing of new historical data on a language can contribute to diachronic studies and language reconstruction. †Old Zamuco is an extinct Zamucoan language, for which the only extant dictionary was recently rediscovered. This dictionary is the main source on the language and is very rich in morphological information. In particular, it contains many new verb paradigms with previously undescribed or only conjectured characteristics. These features were analyzed in order to compare them with the present-day Zamucoan languages, Ayoreo and Chamacoco. This gave us the opportunity to formulate hypotheses on the historical development of Zamucoan verb morphology and to improve the already available reconstruction of Proto-Zamucoan verb inflection.

中文翻译：

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历史数据如何补充实地考察：Zamucoan 动词变形的新历时视角*

本文展示了语言新历史数据的发掘如何有助于历时研究和语言重建。†旧扎木科语是一种已灭绝的扎木科语，最近重新发现了唯一现存的字典。这本词典是语言的主要来源，形态信息非常丰富。特别是，它包含许多新的动词范式，这些范式具有以前未描述或仅推测的特征。分析这些特征是为了将它们与当今的 Zamucoan 语言、Ayoreo 和 Chamacoco 进行比较。这使我们有机会对 Zamucoan 动词形态的历史发展提出假设，并改进已经可用的 Proto-Zamucoan 动词变形重构。