IPA: //ˈkʌzɪnˌhʊd//
KK: /ˈkʌzɪnˌhʊd/
The condition of being related to someone as a cousin.
Their cousinhood brought them closer together during family gatherings.
Cousinhood is formed from "cousin" (from Old French *cousin*, meaning a relative or family member) and "-hood" (from Old English *hād*, meaning state or condition). The word "cousinhood" refers to the state or condition of being cousins or relatives.
Think of 'cousin' as a family member and '-hood' as a state of being, so cousinhood means the state of being related as cousins.
No commonly confused words.