Someone who fiddles or tinkers with things.
A person who maintains railway lines.
A friend or mate
An ostler; one who looks after the horses in a mine.
Someone whose job is to sand and grind small imperfections from metal and ceramic castings.
One who roots or rummages through something.
One who, or that which, roots; one that tears up by the roots.
One who roots for, or applauds, something.