motivation
noun
[ məʊtɪˈveɪʃ(ə)n ]
• a reason or reasons for acting or behaving in a particular way.
• "escape can be a strong motivation for travel"
Similar:
motive,
motivating force,
incentive,
stimulus,
stimulation,
inspiration,
impulse,
inducement,
incitement,
spur,
goad,
provocation,
reason,
rationale,
ground(s),
• a set of facts and arguments used in support of a proposal.
• "the following proposal and motivation is submitted for consideration"
Origin:
late 19th century: from motive, reinforced by motivate.