自始

zìshǐ
  1. from the outset
  2. ab initio

CEDICT

Entry Composition

1 自 zì
  1. (bound form) self; oneself
  2. from; since
  3. naturally; as a matter of course
2 始 shǐ
  1. to begin
  2. to start
  3. then
  4. only then