PROCLIVITY
proclivity, propensity, leaning
(noun) a natural inclination; “he has a proclivity for exaggeration”
Source: WordNet® 3.1
Etymology
Noun
proclivity (plural proclivities)
A predisposition or natural inclination, propensity, or a predilection; especially, a strong disposition or bent.
Synonyms
• penchant, propensity, see also predilection
Source: Wiktionary
Pro*cliv"i*ty, n. Etym: [L. proclivitas: cf. F. proclivité.]
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 Edition