Ishth is a planet of unknown location that is a member of the Ekumen. It is notable as an example of a planet with a moiety societal structure, in which society is divided into exogamous groups. Apparently, these people only recognize heterosexual marriages, as opposed to the four-way moietal marriages of O, for example.
The only example of a person from Ishth is a "Nadir Woman of the Umma" who speaks to Heokad'd Arhe.UL From her name and title, it may be possible to presume that "Nadir" is one of the two (or more) moieties of Ishth, the other presumably being "Zenith". "Umma" is presumably an ethnic, cultural or national group.
|Aka | Alterra | Anarres | Athshe | Beldene | Chiffewar | Cime | Eleven-Soro | Ensbo | Faraday | Four-Taurus-Iao | Ganam | Gao | Gde | Gethen | Hain | Huthu | Ishth | Kapetyn | Kheakh | New South Georgia | O | Ollul | Orint | Prestno | Rokanan | S | Seggri | Sheashel Haven | Terra | Urras | Uttermosts | Ve | Werel | World 4470 | Yeowe|
|Planets in bold have a full novel or story dedicated to them; those that are not are merely referenced.|