Dictionary.com
Thesaurus.com

adelphopoiesis

American  
[uh-del-foh-poi-eesis] / əˌdɛl foʊ pɔɪˈisɪs /

noun

  1. a bonding ceremony, historically recognized in some Christian traditions, uniting two people, usually men, in a kinship relation.


Etymology

Origin of adelphopoiesis

First recorded in 1895–1900; Greek; literally “making of a brother; brotherhood,” equivalent to adelphó(s) “brother” + -poiesis ( def. )