inter se

inter se
in·ter se /ˌin-tər-'sē, -'sā/ adv or adj [Latin]: among or between themselves
the individual rights or obligations of the parties inter seGoozh v. Capitol Souvenir Co., 462 A.2d 1140 (1983)

Merriam-Webster’s Dictionary of Law. . 1996.

inter se
(in-tur say) Latin for "among themselves," referring to rights and duties owed among certain parties rather than to others. For instance, shareholders have certain rights and duties to each other.
Category: Business, LLCs & Corporations → LLCs, Corporations, Partnerships, etc.

Nolo’s Plain-English Law Dictionary. . 2009.

inter se
Latin Among themselves.

Webster's New World Law Dictionary. . 2000.

inter se
[in-tur say]
   Latin for "among themselves," meaning that, for instance, certain corporate rights are limited only to the shareholders or only to the trustees as a group.

Law dictionary. . 2013.