stretch
Make is a word that means to create and starts with "m".
Elongate
deride
aggrandize
earn
To extend or to lengthen
triple, treble
Triple means three times as much.
Well I don't think that their is a synonym for the word forever that starts with K but you could make it whimsical and use continuously with a k in the beginning!!! Sorry
It starts with cap!
The word Xerox is used as a verb. It means to make a copy.
hatch