great-uncle

The term 'great-uncle' is a transparent English compound formed from native elements to specify a precise familial relationship. The adjective 'great', from Proto-Germanic grēutaz, retains its core sense of size or extent but is applied metaphorically in kinship terminology to indicate an additional generational step. Combined with 'uncle', a word of Latin origin that entered English via French, it creates a logical and descriptive term for the brother of a grandparent. This pattern of using 'great-' to denote ascending lineal ancestry (e.g., great-grandfather) is a consistent feature of English kinship nomenclature.

Structure: great (degree of removal) + uncle (male relative) - great: From Old English grēat (big, coarse, thick). In this compound, it functions as a prefix indicating a degree of familial removal. - uncle: From Old French oncle, from Latin avunculus (maternal uncle). In this compound, it functions as the core noun denoting the male relative.