IPA: /əˈsɛndənsi/
KK: /əˈsɛndənsi/
A position of power or influence over others.
The politician's ascendency in the party was evident after the recent elections.
Ascendency is formed from "ascendere" (meaning to climb) and the suffix "-cy" (indicating a state or condition). The word refers to the state of being in a position of power or influence, as if one has climbed to a higher status.
Imagine someone 'climbing' ('ascendere') to a higher position of power or influence — that's what ascendency means.