Proclivity
Pronunciation : Pro*cliv"i*ty
Part of Speech : n.
Etymology : [L. proclivitas: cf. F. proclivit?.]
Definition : 1. Inclination; propensity; proneness; tendency. "A proclivity to steal." Abp. Bramhall.
2. Readiness; facility; aptitude. He had such a dexterous proclivity as his teachers were fain to restrain his forwardness. Sir H. Wotton.
Source : Webster's Unabridged Dictionary, 1913