PolyOz

The Mormons originally practiced a form of polygamy (specifically polygyny - multiple husbands was not OK, only multiple wives). A few renegades still do. This is culturally not part of the polyamorous movement; it's yet anther alternative to monogamy.

Line marriage is a form of group marriage found in fiction in which the family unit continues to add new spouses of both sexes over time so that the marriage does not end.

Robert Heinlein's The Moon Is a Harsh Mistress describes line families in detail. The characters argue that the line family creates economic continuity and parental stability in an unpredictable, dangerous environment. Manuel's line marriage is said to be over 100 years old. The family is portrayed as economically comfortable because improvements and investments made by previous spouses compounded, rather than being lost between generations. Heinlein also makes it a point that this family is racially diverse. A passing reference to Heinlein's marriage forms is made in David Brin's Infinity's Shore, where a sapient bottlenose dolphin crewmember is noted as belonging to a "line marriage, one of the Heinlein forms."

Mention, speaking, Irish luadh, Old Irish luad: *laudo-; Latin laus, laudis, praise. Hence luaidh, beloved one: "spoken or thought of one".

Used commonly by Tastiger to describe his partners as no other words seemed to be effective in describing their relationship