noun
habitual residence
Legal term for the place where a person habitually resides; used in contexts such as jurisdiction, tax, or family law.
国際私法では、常居所が重要な連結点となる。
In private international law, habitual residence is an important connecting factor.
彼の常居所は東京にあると認定された。
His habitual residence was determined to be in Tokyo.
居所 means whereabouts or residence in a broader sense; 常居所 adds the element of habitualness.
Compound of 常 (じょう, 'usual, habitual') + 居所 (きょしょ, 'residence, whereabouts'). The exact historical derivation is uncertain, but the term is used in modern legal contexts.