Numbers
Double Jeopardy!
non- or im- or in-
What are the three prefixes that mean not?
Double Jeopardy!
intra- and endo- and in-
What are the three prefixes that mean in, or within?
Double Jeopardy!
quadri- and tetra-
What are the two prefixes for four?
Double jeopardy!
milli-
What is the prefix for one-thousandth?
Double Jeopardy!
nulli-
What is the prefix for none?
Double Jeopardy!
purpur/o
What is the prefix that means purple?