At which a substantial minority of their basic vocabulary (ideally, 25% to 30%+) is shared by languages classified in the same set. See table of levels of classification (p.297 below).
«The first layer of close relationship in the classification of the Register».
At which a substantial minority of their basic vocabulary (ideally, 25% to 30%+) is shared by languages classified in the same set. See table of levels of classification (p.297 below).