Compounds of 彼ら

• 彼ら
  (n,adj-no) (1) (uk) those (indicating something distant from both speaker and listener, or something understood without naming it directly)
  (2) (arch) they (of people) (used to refer to one's equals or inferiors)
• 彼ら
  (pn,adj-no) they (usually male)
  them
  (P)
• 彼らの助力に依って
  (exp) by dint of their help