oversman
/ˈəʊvəzmən/ /ˈəʊvəzˌman/Scottish
noun
1 Law. An arbiter; specifically a person appointed to decide on the outcome of an arbitrated dispute where the arbiters previously appointed have been unable to agree on a settlement. Compare overman).
2Specifically. A foreman or supervisor in a mine or colliery.
Origin
Late 15th century. Alteration of overman, after genitive compounds in man, as e.g. doomsman, redesman, etc.