Social deixis, familiarity, etc.

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http://www.sil.org/linguistics/GlossaryOfLinguisticTerms/WhatIsFamiliarity.htm
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What is familiarity?
Definition
  Familiarity is a kind of social deixis that expresses a high degree of solidarity
between the speaker and addressee.
Examples (French, German)
  Some uses of the second-person pronouns tu in French and du in German
signal familiarity.
Source:  Hartmann and Stork 1972 83
Generic
  Familiarity is a kind of
  What is solidarity?
Sources
  Hartmann and Stork 1972 83
  Pei and Gaynor 1954 72
  Brown, R. and Gilman 1960 258

(R. Brown? Sounds familiar, alright.  Solid, too.)

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http://www.sil.org/linguistics/GlossaryOfLinguisticTerms/WhatIsSolidarity.htm >
What is solidarity?
Definition
  Solidarity is a scale of perceived like-mindedness or similarity of behavioral
disposition between a speaker and addressee deriving from their similar
backgrounds acquaintance, or personal characteristics, such as sex.
  In some languages, solidarity affects the choice of expressions of social
deixis.
Example
  The choice between using familiar or polite second person pronouns in many
Indo-European languages, such as tu and vous, indicates the level of solidarity
between a speaker and addressee.
Kinds
  Here are some kinds of solidarity:
What is familiarity?
What is intimate social deixis?
What is politeness?
Source
  Brown, R. and Gilman 1960 258

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http://www.sil.org/linguistics/GlossaryOfLinguisticTerms/WhatIsSocialDeixis.htm
 >
What is social deixis?
Definition
  Social deixis is reference to the social characteristics of, or distinctions
between, the participants or referents in a speech event.
Example
  The distinction, found in many Indo-European languages, between familiar
and polite second person pronouns is an expression of social deixis .
Kinds
  Here are some kinds of social deixis:
What is absolute social deixis?
What is relational social deixis?
Generic
  Social deixis is a kind of
  What is deixis?
Sources
  Levinson 1983 63, 93
  Fillmore 1975 76

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