Meaning

noun the state prevailing during the absence of war

noun harmonious relations; freedom from disputes

noun the absence of mental stress or anxiety

originFrom Middle English pees, pes, pais, borrowed from Anglo-Norman peis and Old French pais (“peace”), from Latin pāx (“peace”), from Proto-Indo-European *peh₂ḱ- (“to fasten, stick, place”), related to Latin pacīscor (“agree, stipulate”), Latin pangō (“fasten, fix”); see pact. Doublet of pax. Displaced native Old English sibb and broadly ousted friþ (modern frith).

Etymology from Wiktionary, CC BY-SA 3.0