supplantation
/ˌsʌplɑːnˈteɪʃn/ /ˌsʌplanˈteɪʃn/noun
1The dispossession or displacement of a person (or animal) in a position, especially by treacherous or dishonourable means; an instance of this.
2The supersession or displacement of one thing by another.
Origin
Late Middle English; earliest use found in John Gower (d. 1408), poet. From (i) Middle French supplantation, supplantacion trick, deception, usurpation, overthrow.