|Word root/ prefix||Root Meaning||Words based on the Root|
|Pre||earlier, before, in front of||Preamble - a part in front of a formal document
Prepare - to get ready in advance
Prediction - a statement foretelling the future.
|Proto||primitive, first, chief||Prototype - the first of a kind
Proton - on of the very basic parts of an atom
Protocol - a first draft from which a document is prepared.
|Pseud/o||wrong, false||Pseudonym - a fictitious name
Pseudoscience - theories presumed without proof of a scientific nature
Pseudopregnancy - a false pregnancy.
|Psych/o||mind, mental||Psyche - the human spirit or soul
Psychic - relating to the human mind or someone who has supernatural mental abilities
Psychology - the study of the mind.
|Pugn /a, pung||to fight||Pugnacious - having a quarrelsome or aggressive nature
Repugnant - distasteful, offensive or revolting
Pungent - piercing.