different between retrievableness vs retrievable

English

retrievable +? -ness

retrievableness (uncountable)

(rare) retrievability
- 1839, Richard Treffry, Letters on the atonement (page 185)
  The notion of inherent retrievableness cannot consist with the condition of a totally fallen creature. And yet it must be by some such influence that evil is repressed, and goodness encouraged.

retrieve +? -able

retrievable (comparative more retrievable, superlative most retrievable)

retrievable in The Century Dictionary, New York, N.Y.: The Century Co., 1911.
retrievable in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.

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