insult
Euthanasia
"Overpower" is a word that means to put down by force.
A word with another word put in the middle is called a compound word or a portmanteau.
Another word for apply is put in place
to put on
Quash is a word that means put down or crush that starts with Q.
calm down
Another word for "Put" would be "Place".
explain
ambition
put it down to
descend