Prefix for treat and head
"capit" means "head."
cap-
Undefine
Un is a prefix that works with well, making unwell.
'dis' making 'disloyal'
ForeFront of Head: Forehead
Cap- means on top of or the head.
nav
Postdoctorate has a prefix of 'post' meaning after, and a suffix of 'ate' making it an adjective/descriptive word.
The prefix is "pre-". The root word is view. The suffix is "-ing", making the gerund, "previewing".
It means three. As in the three horns on the head of the beast.