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date: 24 June 2025

Res inter alios (acta) (alteri nocere non debet)  rās ēn´tār a´lēōs (ak´ta) (altā´rē nō´kārā nōn dā´bāt) .  res in´tɜr â´lēōs (âk´tu) (al´tɜrī nō´sɜrī nan de´bet) . 

Source:
Guide to Latin in International Law
Author(s):

Aaron X. Fellmeth,

Maurice Horwitz

“A matter (acting) between others (should not harm third parties).”(1)Res inter alios (acta). n. A matter or rule not legally relevant to a specific person or entity; a matter creating no third‐party rights or duties. ... ...

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