1. suffice
   1. sufficient
      1. sufficiently
      2. self-sufficient
   2. sufficiency
2. fiction
   1. fictionist
   2. fictive
   3. fictional
      1. fictionally
      2. fictionnalize
         1. fictionalized
         2. fictionaliation
   4. nonfiction
      1. nonfictional
3. fact
   1. factory
   2. benefactor
   3. malefactor
   4. factual
      1. factually
      2. factuality
4. perfect
   1. perfective
   2. perfectly
   3. perfection
      1. perfectionist
      2. perfectionistic
5. effect
   1. effective
      1. effectively
      2. effectiveness
      3. ineffective
         1. ineffectively
         2. ineffectiveness
6. affect
   1. affecting
   2. affected
      1. unaffected
   3. affectless
   4. affection
      1. affectional
   5. affective
      1. affectively
7. infect
   1. infected
      1. uninfected
   2. infection
      1. coinfection
   3. infective
   4. infectious
      1. infectiously
   5. disinfect
      1. disinfection
   6. disinfectant
8. office
   1. officer
   2. official
      1. officially
      2. officialism
      3. officialdom
      4. unoffical
         1. unoffically
   3. officemate
9. efficient
   1. enfficiently
      1. inefficiently
   2. efficiency
      1. inefficiency
   3. ineddicient