great-

prefix

being the parent of a person's grandparent (in the combinations great-grandfather, great-grandmother, great-grandparent)

being the child of a person's grandchild (in the combinations great-grandson, great-granddaughter, great-grandchild)

great- /greɪt/ combining form. M16.

ORIGIN: Use of great.

With the names of family relationship denoting one degree further removed in ascent or descent: repeatable according to the number of degrees to be expressed, as great-great-great-grandmother etc.

great-aunt a father's or mother's aunt.great-grandchild a grandchild's child.great-granddaughter a grandson's or granddaughter's daughter.great-grandfather a grandfather's or grandmother's father.great-grandmother a grandfather's or grandmother's mother.great-grandson a grandson's or granddaughter's son.great-nephew a nephew's or niece's son.great-niece a nephew's or niece's daughter.great-uncle a father's or mother's uncle.

great-

Prefix

With familial designations, used to denote a removal of one generation

great-uncle (an uncle of one's mother or father)

great-grandfather (the father of one's grandfather)

great-great-grandfather (a grandfather of one's grandfather)

great-great-great-grandfather, etc.

informal fourth-great-uncle, etc. (same as great-great-great-great-uncle)

informal fourth-great-grandfather, etc. (same as great-great-great-great-grandfather)

词汇	great-
词根词缀	Collins SOED Wiktionary great- prefix being the parent of a person's grandparent (in the combinations great-grandfather, great-grandmother, great-grandparent) being the child of a person's grandchild (in the combinations great-grandson, great-granddaughter, great-grandchild) great- /greɪt/ combining form. M16. ORIGIN: Use of great. With the names of family relationship denoting one degree further removed in ascent or descent: repeatable according to the number of degrees to be expressed, as great-great-great-grandmother etc. great-aunt a father's or mother's aunt.great-grandchild a grandchild's child.great-granddaughter a grandson's or granddaughter's daughter.great-grandfather a grandfather's or grandmother's father.great-grandmother a grandfather's or grandmother's mother.great-grandson a grandson's or granddaughter's son.great-nephew a nephew's or niece's son.great-niece a nephew's or niece's daughter.great-uncle a father's or mother's uncle. great- Prefix With familial designations, used to denote a removal of one generation great-uncle (an uncle of one's mother or father) great-grandfather (the father of one's grandfather) great-great-grandfather (a grandfather of one's grandfather) great-great-great-grandfather, etc. informal fourth-great-uncle, etc. (same as great-great-great-great-uncle) informal fourth-great-grandfather, etc. (same as great-great-great-great-grandfather)
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