The prefix ad- means to, toward. So, to "address" means to speak towards someone, to speak directly to someone. An "address" is a speech, a public statement. Additionally, a "task" is a job, a duty that needs to be done; a "contribution" is something added to help; an "organization" is a group working together for some purpose; an "intention" is something meant to be done, a plan, a mission. 

The prefix under- means below, beneath. As in "underwater" or "underwear." So, "undersized" means below the right size, below normal size. This is closest in meaning to "small." Additionally, "hardy" means tough; "giant" means very big; "erroneous" means incorrect; "costly" means expensive, coming with great loss (of money).

The prefix mis- means badly. So, to "misinform" is to give bad information, to lie to, to deceive. Additionally, "secede" means leave a group, disband from a union; "exceed" means to go beyond; "register" means sign up for; "legislate" means make laws.

The prefix de- means away, from. As in, "descend" which means to go down and away from. So, "depart" means go away, leave. Additionally, "return" means come back; "host" means have people in one's home; "visit" means go to another place and then come back; "excel" means to do very well at.

The prefix post- means after. As in, "posthumous" which means after death. So, to "postpone" means to put off something to do after. This is closest in meaning to "suspend" which means to pause, to wait to do something. Additionally, "possess" means have, own; "borrow" means take something with the intention to give it back; "polish" means clean, make shiny; "affirm" means state is accurate, confirm is true.

The prefix pre- means before. As in, "prevent" which means stop something before it happens. So, "presumptuous" means someone who acts before it is appropriate, bold, assertive and audacious, brash. The closest answer to this is "arrogant." Additionally, "dynamic" means forceful, energetic; "sordid" means involving immoral behavior, dirty, filthy; "secretive" means sneaky, trying to keep something secret; "hideous" means very ugly, disgusting and unattractive.

The prefix ambul- means walk. So, to "amble" means to walk slowly and casually. This has the same meaning as "stroll." Additionally, "sprint" means run fast; "leap" means jump high; "jog" means run slowly. 

The prefix re- means again, back. As in, "remember" which means to think back on, to think about the past. So, "revise" means to edit, to go back over something and make changes. This has the same meaning as "amend." The word "amend" can be found in "amendments" which are changes made to the Constitution. Additionally, "accompany" means go with; "abhor" means hate; "abstain" means refuse to take part in; "assume" means to think is true without knowing for a fact.

The prefix mis- means badly. As in, "misinform" which means to give bad information to. So, a "mistake" is something done badly, something done wrong, an error. Additionally, your "reputation" is what people think of you; "integrity" is the quality of being honest and sticking to one's principles; "intimacy" is togetherness, closeness with other people; "gossip" is rumor, information passed informally through conversation.

The prefix ex- means outside of. As in, "external" which means outside of something. So, to "extract" means to get something out of something else or to withdraw. Additionally, "insert" means put into; "devise" means come up with (a plan); "scheme" means plot, plan something tricky or sneaky; "terrorize" means consistently cause to experience fear.