Answer: pacem

AnswerCrossword Clue
PACEM"... in Terris."
PACEM"... in terris."
PACEM"... in Terris"
PACEMPope John's "... in Terris"
PACEMPope John XXIII's "... in Terris"
PACEM"... in Terris," encyclical of Pope John XXIII
PACEM'Dona nobis ('Grant us peace') --'