rely

verb5

1. •
   to be unable to manage without someone or something

   • The city relies on the subway system.
2. •
   To be intellectually contingent from; to stem from.

   • Parts I and IV of the Court's opinion, and Part III except insofar as it relies upon legislative history — 1989
3. •
   To trust; to have confidence in.

   • I relied on "George" and "Fred"—the autopilot and the flight director—to fly the airplane while I worked my way through […] — 1993
4. •
   (no longer used) To fasten, fix, attach

   • Therefore [they] must needs relye their faithe upon the sillie Ministers faithlesse fidelitie.
5. •
   (no longer used) To bring together again; to rally.

   • Petrius, that was a noble knyght, and bolde and hardy, relied his peple a-boute hym,