The Collaborative International Dictionary
Cater-cousin
Cater-cousin \Ca"ter-cous`in\, n.
A remote relation. See Quater-cousin.
--Shak.
Wiktionary
cater-cousin
n. 1 Distant relative, especially a very distant relative, of doubtful relation. 2 A close or good friend. An intimate. A bosom friend. An intimate friend who is not a blood relation. A person treated as a cousin (relative) who is not a blood relation