本文件描述了ISO 24613-1和ISO 24613-2的扩展，以支持对常见词源现象和/或历时信息的详细描述，这些信息与出生数字和/或复古数字词汇中的词条有关。它提供了这种扩展的元模型以及相关的数据类别。购买本文件时可获得的所有当前修订均包含在购买本文件中。

This document describes an extension to ISO 24613-1 and ISO 24613-2 to support the development of detailed descriptions of common etymological phenomena and/or diachronic information with respect to lexical entries in born-digital and/or retro-digitized lexicons. It provides both a meta-model for such an extension as well as the relevant data categories.All current amendments available at time of purchase are included with the purchase of this document.