6. Ripe in understanding at an early age or before due time; as, a precocious child.
7. A precursor is a forerunner. That which precedes an event and indicates its approach.
8. To determine beforehand by an unchangeable purpose or decree. “Whom He did foreknow He also did predestinate to be conformed to the image of His Son.”
11. To prefer one thing to another is to bring or set it before the other in estimation. To hold in greater liking or esteem.
13. A prejudgment formed without due examination. “Prejudice is the child of ignorance.”
14. Literally, before the threshold. Preceding or leading up to something more important; as preliminary arrangements.
18. A preposition is so called because usually placed before the word with which it is phrased.
19. Anything is preposterous when it is contrary to nature, reason, or common sense. Literally, having that last which ought to be first; as, the “cart before the horse”.
20. To lay down beforehand in writing as a rule of action. “Prescribe not us our duties.”
re = back, again.