grata
Grata is the feminine form of the Latin adjective gratus/gratus, meaning pleasing, welcome, or grateful. In Latin, grata agrees with feminine nouns; the masculine form is gratus and the neuter form is gratum. The term appears in classical and later Latin to describe things or people deemed acceptable or agreeable.
In English, grata is most familiar from the fixed expressions persona grata and persona non grata. Persona
Diplomatic practice: A host government may declare a foreign diplomat persona non grata, typically requiring departure
Other usage: outside diplomacy, the term can describe individuals or groups regarded as welcome within a community