different between extance vs extancy

English

Etymology

Latin extantia, exstantia (“a standing out”), from exstans, present participle. See extant.

Noun

extance (plural extances)

1. (obsolete, rare) emergence

References

• OED

English

Pronunciation

• IPA^(key): /??kst?nsi/

Etymology 1

From Latin extantia, exstantia.

Noun

extancy (plural extancies)

1. (obsolete) The state of rising above others; a projection.
   • 1697, John Evelyn, Numismata. A Discourse of Medals, Antient and Modern

     the Contours neatly trimm'd , and exactly round and carefully preserv'd ; that the Extancy and Relievos correspond with the Ingraving

   • 1665, Robert Boyle, New Experiments and Observations upon Cold

     […] great Quantities of Ice, for whereas in small fragments or plates, the Ice, though it sink not to the bottom of the water, will of?tentimes sink so low in it, as scarce to leave any part evidently extant above the surface of the water, in vast quantities of Ice, that extancy is sometimes so conspicuous, that Navigators in their Voyages to Island, Greenland, and other frozen Regions, complain of meeting with lumps, or rather floating rocks of Ice, as high as their main Masts.

Etymology 2

extant +? -cy; ultimately the same formation as Etymology 1.

Noun

extancy (uncountable)

1. (obsolete) The state of being extant; existence.