土生土长

Traditional (Taiwan): 土生土長

On the HSK 7-9 vocabulary list, at CEFR level C2.

tǔshēngtǔzhǎng ㄊㄨˇ ㄕㄥㄊㄨˇ ㄓㄤˇ

- (of people) born and raised in the locality (of art forms, political parties, enterprises, products etc) developed locally from the outset wholly indigenous
  idiom

Character by character

Sources