quad.
A quadrilateral
Outside Inside Foursided
The prefix "con-" means "with."
The prefix for inadequate is in-. The prefix in- means not.
The prefix is ap-. This prefix means to or toward.
The prefix intra- means inside or within.
The prefix is in-. This prefix means not.
The prefix is in-. This prefix means not.
The prefix is in. The prefix in- means not.
The prefix 'in-' means not.
The prefix for include is in-. This prefix means not.
The prefix that means "former" is "ex-."