What does the root word tonic mean?

The root word "tonic" comes from the Greek word "tonikos," meaning "of or relating to tone."

This refers to the quality of tension, firmness, or strength. It can be used to describe something that:

* Increases strength or vitality: like a tonic drink or a tonic exercise.

* Improves or restores the health or functioning of something: like a tonic for the immune system.

* Relates to musical notes: like the tonic note in a musical scale.

So, the root "tonic" suggests a sense of rejuvenation, revitalization, and restoring balance.