stakeholder

From stake +‎ holder.

stakeholder (plural stakeholders)

1. A person holding the stakes of bettors, with the responsibility of delivering the pot to the winner of the bet.
2. An escrow agent or custodian.
3. (law) A person filing an interpleader action, such as a garnishee or trustee, who acknowledges possession of property that is owed to one or more of several other claimants.
4. A person or organisation with a legitimate interest in a given situation, action or enterprise.[1]

The last definition essentially contradicts the historic definitions and hence the word has become a contronym. The last definition refers to one who has an interest in an issue, whereas the initial definitions refer to one who does not have an interest in the property held (i.e., one who is disinterested, in the "impartial" sense of that word). The last definition has gained significant use since the 1990s, especially when discussing corporate governance. In this sense it is broader than stockholder because it includes other interests besides investment equity (for example, stockholders plus workers plus community members affected environmentally).