Historical Glottometry, introduced by Kalyan & François (2018), is a wave-based quantitative approach to language subgrouping used to calculate the overall strength of a linguistic subgroup using metrics that capture the contributions of linguistic innovations of various scopes to language diversification, in consideration of the reality of their distributions. This approach primarily achieves this by acknowledging the contribution of postsplit areal diffusion to language diversification, which has traditionally been overlooked in cladistic (tree-based) models. In this paper, the development of the Germanic language family, from the breakup of Proto-Germanic to the latest period of the early attested daughter languages (namely, Old English, Old Frisian, Gothic, Old High German, Old Low Franconian, Old Norse, and Old Saxon) is accounted for using Historical Glottometry. It is shown that this approach succeeds in accounting for several smaller, nontraditional subgroups of Germanic by accommodating the linguistic evidence unproblematically where a cladistic approach would fail.

中文翻译：

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使用历史声学法对早期日耳曼语言进行分组

Kalyan & François (2018) 引入的历史声学测量法是一种基于波的语言子群定量方法，用于计算语言子群的整体实力，使用衡量各种范围的语言创新对语言多样化的贡献的指标，考虑到他们的分布的现实。这种方法主要通过承认分裂后区域扩散对语言多样化的贡献来实现这一点，传统上这在分支（基于树的）模型中被忽视了。本文介绍了日耳曼语系的发展，从原始日耳曼语的分裂到早期被证明的子语言（即古英语、古弗里斯兰语、哥特语、古高地德语、古低弗兰肯语、古诺尔斯语）的最新时期, 和旧撒克逊人）使用历史声门法来计算。结果表明，这种方法成功地解释了几个较小的、非传统的日耳曼语亚群，方法是毫无问题地适应分支方法失败的语言证据。