m
hurry
To "jot" means to write down quickly or briefly. As in, "As he drove away, I had to jot down his license plate number."
fast.
It would be either a prefix or a suffix. Prefix means the letters before, and suffix means the letters after the word.
The word would be sane.
soon
asap, which means (as soon as possible)
rush
ran
hurry
jot
scoot
rapidly or swiftly or hastily
To optimize means to make something as efficient or useful as possible. For example, having a computer optimized means making it run as quickly as possible.
hie
nip
Abrupt means quick or fast, so the phrase abrupt change means an altered course that is made fast or quickly.