D defs.my
Entry 2 senses Webster, 1913

Familiarity

/fəm-ĭlˌ-yĕr'-ət-ē/ · Fa·mil·iar·i·ty · IPA /fəmɪliˈæɹɪti/
01 n. The state of being familiar; intimate and frequent converse, or association; unconstrained intercourse; freedom from ceremony and constrain…
pl. Familiarities ((#))
  1. 1.
    The state of being familiar; intimate and frequent converse, or association; unconstrained intercourse; freedom from ceremony and constraint; intimacy; as, to live in remarkable familiarity.
  2. 2.
    Anything said or done by one person to another unceremoniously and without constraint; esp., in the pl., such actions and words as propriety and courtesy do not warrant; liberties.