All languages have expressions that can be glossed ‘father,’ ‘wife,’ ‘brother-in-law,’ etc., covering consanguineal, spousal, and affinal categories. However, from the beginning of serious cross-cultural study, it has been apparent that societies differ in the kinship categories used. To facilitate comparison, an ‘etic grid’ is necessary; namely, an open-ended universe of kin-types, such as ‘fa...