The definition of a lair is a secret, secluded or private place, especially one used by an animal.(noun)
A wolf's den is an example of a lair.
See lair in Webster's New World College Dictionary
Origin: ME lier < OE leger, lit., lying place, hence bed, couch (in Du, a camp) < Gmc base (*leg-) of licgan, to lie
See lair in American Heritage Dictionary 4
Origin: Middle English
Origin: , from Old English leger; see legh- in Indo-European roots.
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