fixity

Meanings

1. 1
   noun

   the state of being firmly fixed in position or kept stable

   Steel braces gave the temporary structure greater fixity.

2. 2
   noun

   the quality of being unchanging or resistant to change

   Darwin's evidence challenged the supposed fixity of species.

From fix + -ity, modeled on French fixite and ultimately related to Latin fixus ("fastened, fixed"), the past participle of figere ("to fasten").

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