Definition of "Motive" :

noun: the psychological feature that arouses an organism to action toward a desired goal; the reason for the action; that which gives purpose and direction to behavior

"He acted with the best of motives."

noun: a design or figure that consists of recurring shapes or colors, as in architecture or decoration

noun: a theme that is repeated or elaborated in a piece of music

adjective: impelling to action

"Motive pleas."

adjective: causing or able to cause motion

"A motive force."