More and Overmuch

More adjective - Resulting in an increase in amount or number.

Overmuch and more are semantically related In some cases you can use "Overmuch" instead an adjective "More".

Overmuch adjective - Going beyond a normal or acceptable limit in degree or amount.

More and overmuch are semantically related in excessive topic. Sometimes you can use "More" instead an adjective "Overmuch".