What is "first cousins"

Cousin \Cous"in\ (k[u^]z"'n), n. [F. cousin, LL. cosinus, cusinus, contr. from L. consobrinus the child of a mother's sister, cousin; con- + sobrinus a cousin by the mother's side, a form derived fr. soror (for sosor) sister. See Sister, and cf. Cozen, Coz.]

1. One collaterally related more remotely than a brother or sister; especially, the son or daughter of an uncle or aunt.

   Note: The children of brothers and sisters are usually denominated first cousins, or cousins-german. In the second generation, they are called second cousins. See Cater-cousin, and Quater-cousin.

   Thou art, great lord, my father's sister's son, A cousin-german to great Priam's seed.
   --Shak.

2. A title formerly given by a king to a nobleman, particularly to those of the council. In English writs, etc., issued by the crown, it signifies any earl.

   My noble lords and cousins, all, good morrow.
   --Shak.

n. (first cousin English)