persona gratapersona gra·ta
pl. per·so′nae gra′tae
a person who is acceptable or welcome; esp., a foreign diplomat acceptable to the government to which he or she is assigned
Origin of persona grataClassical Latin
Fully acceptable or welcome, especially to a foreign government: The diplomat was persona grata.
Origin of persona grataLate Latin pers&omacron;na grata : Latin pers&omacron;na, person + Latin grata, feminine of gratus, acceptable.