Daysman

Daysman - (Easton's Bible Dictionary)

An umpire or arbiter or judge (Job 9:33). This word is formed from the Latin diem dicere, i.e., to fix a day for hearing a cause. Such an one is empowered by mutual consent to decide the cause, and to "lay his hand", i.e., to impose his authority, on both, and enforce his sentence.

Daysman - (Webster's 1828 Dictionary)

DA'YSMAN, n. An umpire or arbiter; a mediator.

Neither is there any daysman betwixt us. Job 9.