denigraturen.
Origin: A variant or alteration of another lexical item. Etymon: denigration n.
Etymology: < Alteration (with suffix substitution: see -ure suffix1) of denigration n.
rare. Apparently only attested in dictionaries or glossaries.
1727 N. Bailey II Denigrature, a making black.
This entry has not yet been fully updated (first published 1895; most recently modified version published online September 2021).