Cous"in (kŭz"'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 (forsosor) 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.

&fist; 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.

Cous"in, n. Allied; akin. [Obs.] Chaucer.

• son or daughter of someone's uncle or aunt
  
• relative who is not a direct ancestor or descendant, more distantly related than an aunt, uncle, niece, nephew, etc. Relatives who have a common grandparent are called first cousins, those who have a common great-grandparent are called second cousins, a great-great-grandparent third cousins, and so forth.
  
  French
• cousin (male)
  
  German
• a male cousin