glottochronology英'glɒtəʊkrə'nɒlədʒɪ美ˌglɒtoʊkrə'nɒlədʒɪCOCA¹⁹²⁹⁴⁴BNC¹⁴⁴⁶⁶⁴⁺³ 基本英英 n.语言年代学⁶⁷;词源统计分析法³³ Noun: the determination of how long ago different languages evolved from a common source language;
he mapped the glottochronology of the Romance languages