cater-cousin meaning

/kāˈtər-kuzˈn/ (Shakespeare)
  noun
1. A person allied by familiarity, affection or sympathy, rather than kindred
2. An intimate friend
  ORIGIN: More prob connected with cater¹, than quatre or quarter

• cater:    Verb: cater & ...
• cater to:    cater to/for sb • ...
• cousin:    Noun: cousin  ...