If someone is heterodox, he usually holds opinions that are different from the norm'

1
If someone is heterodox, he usually holds
opinions that are different from the norm.
To indoctrinate someone is to make her opinions
the same as your own.
What does the stem dox/ doc mean?
What does it mean if someone is an orthodox
person?
What would the doctrine of a church be?
2
A building that is amphistylar has columns at
both ends.
The amphisbaena was a mythical serpent with a
head at both ends.
What does the stem amphi mean?
What is special about an amphibian airplane?
What is special about an amphibious animal?
3
Something of magnitude has great size or extent.
The magnum opus is the greatest achievement of an
artist or writer.
What does the stem magn mean?
Why was the name Magna Carta chosen for the
document it represents?
How would you feel if your teacher wrote
magnificent on your paper?
4
If someone is in a state of euphoria, she feels
very good.
A euphony is a good and pleasing sound, such as
someone singing a lullaby.
What does the stem eu mean?
At a funeral, why does someone usually deliver a
eulogy?
Why is passed away considered a euphemism for
died?