The Collaborative International Dictionary
Fuscation
Fuscation \Fus*ca"tion\, n. [L. fuscare, fuscatum, to make dark,
fr. fuscus dark.]
A darkening; obscurity; obfuscation. [R.]
--Blount.
Wiktionary
fuscation
n. (context archaic English) A darkening; obscurity; obfuscation.