propensity

 
Pronunciation: /prəˈpɛnsɪti/

noun (plural propensities)

  • an inclination or natural tendency to behave in a particular way: his propensity for violence [with infinitive]: their innate propensity to attack one another

Origin:

late 16th century: from archaic propense (from Latin propensus 'inclined', past participle of propendere, from pro- 'forward, down' + pendere 'hang') + -ity