motive

noun

Motive — the hidden reason behind a deliberate act

Definition

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; "we did not understand his motivation"; "he acted with the best of motives"

In depth

A motive is the specific psychological reason that drives a person toward a particular action, the answer to the question of why, beneath circumstance and opportunity, someone chose to act as they did. The word carries a particular charge in narrative and legal contexts, where uncovering the true motive often matters more than the act itself.

Origin

The word shares its root with 'motivation,' descending from Latin motivus, capable of moving, itself from movere, to move. Its legal and narrative prominence grew alongside the development of modern criminal investigation, which formalized motive, alongside means and opportunity, as one of the three pillars required to establish guilt.

Usage examples

"The detective was certain the killer's motive lay buried somewhere in the family's old quarrel over money."

"She questioned her own motive for the kindness, wondering whether it was generosity or simply guilt."

"No motive the jury could imagine seemed to fit the strange, senseless crime."

How to use it

Motive is essential vocabulary for mystery, crime, and psychological fiction, where the search for a character's true motive often structures the entire narrative. It carries a slightly more concrete, singular sense than the broader 'motivation.'