familiarly

Adverb

familiarly (comparative more familiarly, superlative most familiarly)

1. In a casual or informal manner, as with a close acquaintance; especially when such behavior may be considered inappropriate.
   • He spoke familiarly to the hotel porter.
2. (dated) In an inappropriately sexual or romantic manner.
   • ‘Oh, my oath,’ Dan said, and ‘chucked’ Mrs. Brown familiarly under the chin. ‘Get along wid you!’ she cried, jumping back and colouring up.1911, ‘Steel Rudd’, The Book of Dan, Brisbane: University of Queensland Press, published 1970, page 43
3. In a manner prompting recognition or recollection.
   • The voice from downstairs sounded familiarly like a foghorn, and right away he knew that Uncle Fred had arrived.
4. In a manner expressing comprehensive or intimate knowledge.
   • The instructor spoke familiarly about the dangerous conditions on the mountain during the winter.