different between proclivity vs facility

English

From Latin pr?cl?vit?s, from pro (“toward”) + cl?vus (“a slope, hill”).

proclivity (plural proclivities)

A predisposition or natural inclination, propensity, or a predilection; especially, a strong disposition or bent.
- , Episode 16
  This therefore was the reason why the still comparatively young though dissolute man who now addressed Stephen was spoken of by some with facetious proclivities as Lord John Corley.

From Middle French facilité, and its source, Latin facilit?s.

facility (countable and uncountable, plural facilities)

The fact of being easy, or easily done; absence of difficulty, simplicity. [from 16th c.]
Dexterity of speech or action; skill, talent. [from 16th c.]
The facility she shows in playing the violin is unrivalled.
The physical means or contrivances to make something (especially a public service) possible; the required equipment, infrastructure, location etc. [from 19th c.]
Transport facilities in Bangkok are not sufficient to prevent frequent traffic collapses during rush hour.
An institution specially designed for a specific purpose, such as incarceration, military use, or scientific experimentation.
(Canada, US, in the plural) A toilet. [from 20th c.]
(Scotland, law) A condition of mental weakness less than idiocy, but enough to make a person easily persuaded to do something against their better interest.
(dated) Affability.

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