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Webster 1913 Edition

Noun.

The quality of being saving; carefulness not to expend money uselessly; frugality; parsimony.

Mrs. H. H. Jackson.

Tendency to promote salvation.

Johnson.

Noun.

Frugality; parsimony, caution not to expend money without necessity or use.

Tendency to promote eternal salvation.

savingness ‎(uncountable)

The quality of being careful not to waste money; frugality; parsimony.
- 1885, Helen Hunt Jackson, Zeph: A Posthumous Story
  Her love of a good dinner herself, and her still keener love of the approbation she won by setting it before others, kept up perpetual warfare with her savingness […]
Tendency to promote religious salvation.
(Can we find and add a quotation of Johnson to this entry?)