Reverse Dictionary: RELATION

ADJECTIVES
► LONG-WAY-AROUND of a relative: distant, remote → 1991 Amer. dial.
► NECESSITUDINARY belonging to friendship, relation etc. → 1721 obs.
► NEPOTIOUS excessively fond of one’s nephews and other relatives → 1834

NOUNS
► AGNATION relation traced through the male line; more generally, relationship traced through the father → 1531
► NECESSITUDE a relation or connection between persons → 1612 obs.
► SEED, BREED, AND GENERATION the whole of one’s family and relatives → 1792 Eng. dial.

NOUNS – PERSON
► AFFINAL  a relative by marriage → 1883
► AFFINE a relative by marriage → 1357 obs.
► AFFINITY 1. a family or group related to a person by blood; a kindred; a blood relative → 1357 obs.
2. a family or group related to a person by marriage; a relative by marriage → 1405 obs.
► AGNATE a relation through the male line; also, more generally, a relation through the father → 1474
► BACKYARD COUSIN a relation, possibly an illegitimate child, of whom the speaker is not especially proud to own → 1983 Amer. dial.
► BACKYARD RELATION a relative by illegitimate birth → 1939 Amer. dial.
► BARNYARD RELATION a distant relation → 1967 Amer. dial.
► BEDSTEAD RELATION an in-law; a relation you get in marriage → 1967 Amer. dial.
► BELANGINGS relatives, family connections → 1898 Eng. dial. (Bk.)
► BLOOD a blood relation → 1960s Black British sl.
► BLOOD-FRIEND a blood relation → 1911 Sc. (Bk.)
► BUTTONHOLE CONNECTION ► BUTTONHOLE COUSIN ► BUTTONHOLE RELATION a distant relative; a family friend → 1913 Amer. dial.
► BY-SYBBE a relative → c1440 obs.
► CAT-RAN-THROUGH-THE-GARRET RELATION a distant relative → 1913 Amer. dial. (Bk.)
► CLAN relations → 1978 jocular usage
► COMPERE a relative by marriage → 1927 Amer. dial., chiefly African-American
► CONSOBRINE a cousin, a relation → 17C obs.
► COUSIN-GERMAN a near relative, a close connection → 1547
► FATHER-FOLK the relations, family of one’s father → 1790 Eng. dial.
► FRIENDMAN a relative → a1200 obs.
► GADLING ► GEDLING a kinsman, a relative; also, a nephew, a cousin → c1000 obs.
► GATSHIRD a relation, a cousin → 1825 Sc.
► GENTLE BEGGAR a poor relation → 1824 Sc. obs.
► GERMAN one sprung from the same stock; a brother, a near relative; one approaching a brother in nearness of blood; generally applied to the children of brothers and sisters, who are called cousins german → 1491 obs.
► GERMANE a close relative, a full brother or sister → 1502
► GRASS RELATION a person related to another as a result of divorce and remarriage → 1942 Amer. dial.
► HALF-BROTHER a cousin where the fathers are brothers → 1913 Amer. dial. (Bk.)
► KENTISH COUSINS distant relatives → a1796
► KETTLE COUSIN a poor relative, who ‘licks the kettle for his supper’ → 1960 Amer. dial.
► KITH AND KIN friends and relatives → 1377
► LEFT-HANDED RELATION an in-law rather than a blood relative → 1931 Amer. dial.
► MILK BROTHER a person (not a sibling) related to another by the fact of their being nursed by the same woman → 1991 Amer. dial.
► MILK COUSIN a person (not a sibling) related to another by the fact of their being nursed by the same woman → 1968 Amer. dial. 
► MOWE a female relative; a kinswoman, esp. by marriage, as a sister-in-law, etc. → c1200 obs.
► NECESSARY a near friend or kinsman → 1382 obs.
► RELATIONIST a relative, a relation → 19C obs.
► RELLIES relatives → 1921 colloq.
► SHIRTTAIL KIN ► SHIRTTAIL RELATION ► SHIRTTAIL RELATIVE a distant relative → 1927 Amer. dial., often derogatory
► SHOESTRING RELATION a distant relative → 2001 Amer. dial.
► SIB a kinsman or kinswoman → a1023
► SIBMAN a kinsman → a1300 obs.
► SIBNESS kinsfolk, relatives → a1290 obs.
► SIBS kinsfolk, relatives → a1000
► SOD RELATION a person related to another through remarriage of a widow or widower → 1942 Amer. dial.
► THIRDS-OF-KIN a relative in the third degree → 1892 Sc.
► TRIBE a large family or group of relatives → 1833 sl.
► WICKED UNCLE a relative who treats a child dependent on him with cruelty → 1922 (Bk.)
► WOODPILE COUSIN an actual, if distant, blood relative → 1975 US sl.
► WOOD-PILE RELATION a remote or distant relation → 1913 Amer. dial.
► YOUNG BLOOD a blood relation → 1972 Black British sl.