Relating to or pertaining to a domicile or residence; connected with one's home, household, or place of residence.
From domicile (French from Latin domicilium) + -ary (suffix meaning 'relating to'). The -ary form is the standard adjective-forming suffix in English legal terminology.
Police can conduct 'domiciliary searches'—it's the technical term for searching someone's home, and the word's formality reflects how seriously law treats private residence as a protected space.
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