ROGET THESAURUS
first cousin
Consanguinity
N
consanguinity, relationship, kindred, blood, parentage, filiation, affiliation, lineage, agnation, connection, alliance, family connection, family tie, ties of blood, nepotism, kinsman, kinfolk, kith and kin, relation, relative, connection, sibling, sib, next of kin, uncle, aunt, nephew, niece, cousin, cousin- german,
first cousin, second cousin, cousin once removed, cousin twice removed, ear relation, distant relation, brother, sister, one's own flesh and blood, family, fraternity, brotherhood, sisterhood, cousinhood, race, stock, generation, sept, stirps, side, strain, breed, clan, tribe, nation, related, akin, consanguineous, of the blood, family, allied, collateral, cognate, agnate, connate, kindred, affiliated, fraternal, intimately related, nearly related, closely related, remotely related, distantly related, allied, german.