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Webster 1913 Edition

Noun.

[L.

edacitas

Greediness; voracity; ravenousness; rapacity.

Bacon.

Noun.

[L. edacitas, from edax, edo, to eat.] Greediness; voracity; ravenousness; rapacity.

edacity ‎(uncountable)

greediness; voracity; rapacity
- Franicis Bacon, Natural History
  It is true, that the wolf is a beast of great edacity and digestion....
- 1837 Thomas Carlyle, The French Revolution: A History
  [I]f thou have any vendible faculty, nay if thou have but edacity and loquacity, come!