familiarly

comparative more familiarly · superlative most familiarly

1. With a lack of formality:
   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. datedIn 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. colloquialhuman sciencesColloquially; of common or vernacular speech, as opposed to scholarly language.

      The giant panda, familiarly known as a "panda bear", is not actually a bear at all.

2. With knowledge or experience:
   1. 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.

   2. In a manner expressing comprehensive or intimate knowledge.

      The instructor spoke familiarly about the dangerous conditions on the mountain during the winter.