At, to, or from the root or central part; fundamentally; completely, thoroughly.

In fundamental or essential matters or points; as regards fundamentals; essentially. In later use also as a sentence adverb.

In relation to an origin or starting point; basically, fundamentally; essentially.

As a root; primarily, fundamentally; in essence. Now rare.

Fundamentally, pre-eminently.

at (the) root: at bottom, fundamentally; in essence.

With respect to the heart or core of something; fundamentally, essentially; with central significance.

In the last resort; when carried to the natural or logical conclusion; fundamentally.

At bottom, basically, essentially.

As a base or basis, fundamentally.

As a basic or fundamental principle, condition, matter, etc.; essentially; fundamentally.