establish

verb4

1. •
   to start a company, a school or a group and give it a firm beginning

   • But with thee will I establish my covenant; and thou shalt come into the ark, thou, and thy sons, and thy wife, and thy sons' wives with thee. — 1611
2. •
   To appoint or adopt, as officers, laws, regulations, guidelines, etc.; to enact; to ordain.
3. •
   To prove and cause to be accepted as true; to demonstrate.
4. •
   To make stable or firm; to confirm.

   • Once it [a snowdrop variety] became established, some bulbs were lifted and passed on to be chipped (i.e. cut into small pieces and grown on). — 2015