posit (verb) - to place in position; to put forth as truth or assumed as fact; to postulate [poz-it]
BREAKDOWN: POS- (put) + SIT- (place, position)
a posit can be something that is assumed; a proposition or postulate
See also: indispose, juxtaposition
“Group selection posits that groups of organisms can act in an altruistic way to protect or benefit the group at the individual’s expense.” —Valter Longo