Definition of res inter alios acta in English:

res inter alios acta

(also res inter alias acta)


  • ‘A thing done between others’: denoting proceedings, a transaction, etc., to which a given person or entity was not party.


Late 17th century; earliest use found in George MacKenzie (?1638–1691), lawyer and politician. From post-classical Latin res inter alios acta ‘a thing done between others’ from classical Latin rēs thing + inter + aliōs, masculine accusative plural of alius another, other + ācta, feminine of past participle of agere to do.


res inter alios acta

/ˌreɪz ɪntə(r) ˌalɪɒs ˈaktə/