• (British) IPA: /fəmɪlɪˈæɹɪti/

familiarity

1. The state of being extremely friendly; intimacy.
   • 1603, Michel de Montaigne, chapter 8, in John Florio, transl., The Essayes, […], book II, printed at London: By Val[entine] Simmes for Edward Blount […], OCLC 946730821 ↗:

     It is also folly and injustice to deprive children […] of their fathers familiaritie, and ever to shew them a surly, austere, grim, and disdainefull countenance, hoping thereby to keepe them in awfull feare and duteous obedience.

   • 1677, Hannah Woolley, The Compleat Servant-Maid, London: T. Passinger, p. 2,

     Do not keep familiarity with any but those, with whom you may improve your time.

2. Undue intimacy; inappropriate informality, impertinence.
3. An instance of familiar behaviour.
4. Close or habitual acquaintance with someone or something; understanding or recognition acquired from experience.

• French: familiarité
• German: Vertrautheit
• Portuguese: familiaridade
• Spanish: intimidad

• French: familiarité
• Russian: фамильярность
• Spanish: impertinencia

• French: familiarité
• Spanish: familiaridad

• Russian: ознакомленность
• Spanish: familiaridad