denegation

[den-i-gey-shuh n] /ˌdɛn ɪˈgeɪ ʃən/
noun
1.
denial; contradiction.
Origin
1480-90; < Late Latin dēnegātiōn- (stem of dēnegātiō). See de-, negation
British Dictionary definitions for denegation

denegation

/ˌdɛnɪˈɡeɪʃən/
noun
1.
a denial, contradiction, or refusal
Word Origin
C17: from Late Latin dēnegātiō, from Latin dēnegāre to deny, refuse, from negāre to deny