eirenicon
/aɪəˈrɛnɪkɒn/Definitions
1. noun
A document or instrument containing an offer of peace or a guarantee of safety, especially in medieval times.
“The king issued an eirenicon to the warring factions, calling for a temporary ceasefire.”
2. noun
A token or symbol of peaceful intentions.
“The ambassador carried an eirenicon with her, signifying that she came in peace.”