social-, socia-, soci-, socio- +

(Latin: companion, partner, ally, comrade; interpersonal relationships, living with others, allied, associated; characterized by friendliness or geniality)

sociocracy
Collective government or government by society as a whole.
sociodrama
1. Psychodrama focusing on the entire therapy group and aiming at the active restructuring of attitudes to better fit the social mores of the society.
2. An improvised play acted by or for those involved in a situation of social tension in order to portray different perceptions of the same situation and represent objectively what each experiences in his or her role; a form of psychiatric treatment based on this type of play.
sociogram
1. A diagrammatic representation of the valences and degrees of attractiveness and acceptance of each individual rated according to the interpersonal interactions between and among members of a group.
2. A diagram in which group interactions are analyzed on the basis of mutual attractions or antipathies between group members.
sociolinguistic
1. Of or relating to the social aspects of language.
2. Of or relating to sociolinguistics.
3. The study of language and linguistic behavior as influenced by social and cultural factors.
sociology
1. The study of the origins, developments, and structures of human societies and the behavior of individual people and groups in society.
2. The study of a particular social institution and the part it plays in society.
sociopath
1. Someone who exhibits antisocial personality disorder.
2. A person with an antisocial personality disorder ("psychopath" was once widely used, but has now been superseded by "sociopath").
sociopathic
A reference to antisocial behavior or to antisocial personality disorders.
sociopathy
A personality disorder characterized by continuous and chronic antisocial behavior in which the rights of others or generally accepted social norms are violated.

Associated personality traits include impulsiveness, egocentricity, inability to tolerate boredom or frustration, irritability and aggressiveness, recklessness, disregard for truth, and the inability to maintain consistent, responsible functioning at work, at school, or as a parent.

sociophobia (s) (noun) (no plural)
An abnormal hatred of society or any social friendships: Frank was not a very companionable or convivial person and avoided parties, dinners, and other get-togethers with colleagues or acquaintances because he had sociophobia.
sociopolitical
Of, pertaining to, or signifying the combination or interaction of social and political factors.
sociotherapy
Any treatment with major emphasis on the socioenvironmental and interpersonal factors that affect adjustment; such as, milieu (environment, surroundings) therapy or as is used in a therapeutic community.
socius criminis (Latin phrase)
Translation: "A partner in crime."
unsociable
1. Not liking or seeking the company of other people.
2. Not favoring or encouraging social interaction.
unsociably
1. In an unsociable manner.
2. Not congenial; incompatible.
unsocial
1. Not liking or seeking the company of other people.
2. Characterized or caused by a dislike of the company of other people.
3. Annoying, inconsiderate, or indifferent to the needs of others.