fragility

noun

Etymology: Borrowed from Middle French fragilité, from Latin fragilitās. Doublet of frailty. Morphologically fragile + -ity.

1. The condition or quality of being fragile; brittleness; frangibility.

   “It is tempting to speculate about the incentives or compulsions that might explain why anyone would take to the skies in [the] basket [of a balloon]: […]; perhaps to moralise on the oneness or fragility of the planet, or to see humanity for the small and circumscribed thing that it is; […].”

2. Weakness; feebleness.
3. Liability to error and sin; frailty.