- The definition of a cousin is the child of your aunt and/or uncle.
An example of a cousin is the baby born to your mother's sister.
- Obsolete a collateral relative more distant than a brother or sister, descended from a common ancestor
- the son or daughter of one's uncle or aunt: also called first cousin, full cousin, or cousin-german: one's second cousin is a child of one's parent's first cousin; one's first cousin once removed is a child of one's first cousin (or, conversely, a first cousin of one's parent)
- loosely any relative by blood or marriage
- a person or thing thought of as somehow related to another: our Mexican cousins
- a title of address used by one sovereign to another sovereign or to a nobleman
Origin of cousinMiddle English cosin ; from Old French ; from Classical Latin consobrinus, origin, originally , child of a mother's sister, also cousin, relation ; from com-, with + sobrinus, cousin on the mother's side ; from base of soror, sister
- A child of one's aunt or uncle. Also called first cousin.
- A relative descended from a common ancestor, such as a grandparent, by two or more steps in a diverging line.
- A relative by blood or marriage; a kinsman or kinswoman.
- A member of a kindred group or country: our Canadian cousins.
- Something similar in quality or character: “There's no mistaking soca for its distant Jamaican cousin, reggae” (Michael Saunders).
- Used as a form of address by a sovereign in addressing another sovereign or a high-ranking member of the nobility.
Origin of cousinMiddle English cosin, a relative, from Old French, from Latin cōnsōbrīnus, cousin : com-, com- + sōbrīnus, cousin on the mother's side; see swesor- in Indo-European roots.
- People who have common grandparents but different parents are first cousins. People who have common great-grandparents but no common grandparents and different parents are second cousins, and so on.
- In general, one’s nth cousin is anyone other than oneself or one's siblings found by going back n+1 generations and then forward n+1 generations. One of my first cousin's parents is one of my parents' siblings. One of my second cousin's grandparents is one of my grandparents' siblings.
- The child of one’s first cousin is one’s first cousin once removed; the grandchild of one’s first cousin is one’s first cousin twice removed, and so on. For example, if Phil and Marie are first cousins, and Marie has a son Andre, then Phil and Andre are first cousins once removed.
- In the southern US, the relation is considered the number of links between two people of common ancestry to the common aunt or uncle.
- A patrilineal or paternal cousin is a father's niece or nephew, and a matrilineal or maternal cousin a mother's. Paternal and maternal parallel cousins are father's brother's child and mother's sister's child, respectively; paternal and maternal cross cousins are father's sister's child and mother's brother's child, respectively.
From Old French cosin, from Latin cōnsōbrīnus, from com- + sōbrīnus.