Compounds of 互いに

• 互いに
  (adv) mutually
  with each other
  reciprocally
  together
  (P)
• お互いに
  (adv) (pol) mutually
  with each other
  reciprocally
  together
  both
• 互いに素
  (adj-na,adj-no) (1) (math) coprime
  relatively prime
  (2) disjoint
• 御互いに
  (adv) (pol) mutually
  with each other
  reciprocally
  together
  both