consanguineous
adjective
con·san·guin·e·ous
| \ ˌkän-ˌsan-ˈgwi-nē-əs
, -ˌsaŋ-\
, -ˌsaŋ-\
Definition of consanguineous
: of the same blood or origin
specifically
: descended from the same ancestor
consanguineous brothers