Fa*mil`iar"i*ty (?), n.; pl. Familiarities (#). [OE. familarite, F. familiarit'efr. L. faniliaritas. See Familiar.]
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.
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.
Syn. -- Acquaintance; fellowship; affability; intimacy. See Acquaintance.
© Webster 1913.