What does ‘substantiate’ most nearly mean?

A placate attempt is meant to:

Knowing the root equ, an equation shows:

Based on err, to err means to:

Based on dic / dict, a verdict is a:

Paralysis describes:

Magnanimity involves:

What does intervene most nearly mean?

The suffix -ile most often means:

Which suffix most often forms a noun meaning a belief or doctrine?