取而代之

qǔérdàizhī
(idiom) to replace; to supersede; to take its (or her etc) place

CEDICT

Entry Composition

1 取 qǔ
  1. to take
  2. to get
  3. to choose
  4. to fetch
2 而 ér
  1. and
  2. as well as
  3. and so
  4. but (not)
  5. yet (not)
  6. (indicates causal relation)
  7. (indicates change of state)
  8. (indicates contrast)
3 代 dài
  1. to be a substitute for; to act on behalf of; to replace; to substitute
  2. generation; dynasty; age; period; (historical) era; (geological) eon
4 之 zhī
  1. (possessive particle, literary equivalent of 的 de)
  2. him
  3. her
  4. it