PRE- adv.
A prefix denoting priority (of time, place, or rank); as, precede, to go before; precursor, a forerunner; prefix, to fix or place before; preëminent eminent before or above others. Pre- is sometimes used intensively, as in prepotent, very potent. [Written also præ-.]
PRO- n.
A prefix signifying before, in front, forth, for, in behalf of, in place of, according to; as, propose, to place before; proceed, to go before or forward; project, to throw forward; prologue, part spoken before (the main piece); propel, prognathous; provide, to look out for; pronoun, a word instead of a noun; proconsul…
PROTO- n. 3 definitions
A combining form prefix signifying first, primary, primordial; as, protomartyr, the first martyr; protomorphic, primitive in form; protoplast, a primordial organism; prototype, protozoan.
PSEUDO- n.
A combining form or prefix signifying false, counterfeit, pretended, spurious; as, pseudo-apostle, a false apostle; pseudo- clergy, false or spurious clergy; pseudo-episcopacy, pseudo-form, pseudo-martyr, pseudo-philosopher. Also used adjectively.
QUASI n.
er sense or degree; having some resemblance to; qualified; -- used as an adjective, or a prefix with a noun or an adjective; as, a quasi contract, an implied contract, an obligation which has arisen from some act, as if from a contract; a quasi corporation, a body that has some, but not all, of the peculiar attributes…