SEE:

roj             peace (n)
rojHom          truce,  temporary peace (n)
rojmab          peace treaty (n)
rojmab qep      peace talks (n)

SEE ALSO:

ghar            conduct diplomacy (v)
Sutlh           negotiate (v)
Qoj             make war (v)
ghanHa’         be peaceful, calm (v)
qI'             sign (a treaty) (v)

rom             accord (n)
mab             treaty (n)

TREK TRIVIA:

After Gorkon's assassination, his daughter Azetbur continued to sue for peace with the Federation, leading to her presiding over the successful treaty meeting at Camp Khitomer. (ST6)

Klingon had no word for peacemaker until the Klingons encountered deaf mediator Riva of Ramatis III, who helped negotiate several treaties between the Klingons and the Federation. Worf didn't view it as a compliment. (TNG "Loud as a Whisper")