wedge - A piece of material with a thick end that tapers to a thin edge, used to split, support, or secure things; also something that forces separation or division between people or groups.

The disagreement drove a wedge between the two longtime friends, and they really didn't enjoy spending time together anymore.
nourish - To provide food or other substances necessary for growth, health, and good condition; also to support or promote the development of something (like ideas, feelings, or relationships).

She worked hard to nourish her creativity by painting every day.
slug - A tough-skinned terrestrial mollusk that typically lacks a shell and secretes a film of mucus for protection. It can be a serious plant pes

A slug is one of the slowest-moving animals on earth, so someone who is afraid of them can easily run away.