The Collaborative International Dictionary of English v.0.48:
Cenogamy \Ce*nog"a*my\ (s[-e]*n[o^]g"[.a]*m[y^]), n. [Gr.
koino`s common + ga`mos marriage.]
The state of a community which permits promiscuous sexual
intercourse among its members, as in certain societies
practicing communism.
[1913 Webster]
The Collaborative International Dictionary of English v.0.48:
Coenogamy \C[oe]*nog"a*my\, n. [Gr. ?; koino`s common + ?
marraige.]
The state of a community which permits promiscuous sexual
intercourse among its members; -- as in certain primitive
tribes or communistic societies. [Written also cenogamy.]
[1913 Webster]