peri-

• subperiostealsub·peri·oste·al

  1. Prefixsub-below, under
  2. +Prefixperi-around, surrounding
  3. +Rootoste/obone
  4. +Suffix-alpertaining to

  beneath the periosteum, the membrane that covers the outer surface of a bone

• pericarditisperi·card·itis

  1. Prefixperi-around, surrounding
  2. +Rootcardi/oheart
  3. +Suffix-itisinflammation

  inflammation of the pericardium, the sac around the heart

• periodontalperi·odont·al

  1. Prefixperi-around, surrounding
  2. +Rootodont/otooth
  3. +Suffix-alpertaining to

  surrounding a tooth; relating to the gums and other tissues that support the teeth

• perinatalperi·nat·al

  1. Prefixperi-around, surrounding
  2. +Rootnat/obirth
  3. +Suffix-alpertaining to

  relating to the period around the time of birth, shortly before and after delivery

• perianalperi·an·al

  1. Prefixperi-around, surrounding
  2. +Rootan/oanus
  3. +Suffix-alpertaining to

  relating to or located in the tissues around the anus, as a perianal abscess

• perioralperi·or·al

  1. Prefixperi-around, surrounding
  2. +Rootor/omouth
  3. +Suffix-alpertaining to

  in the area around the mouth, as in perioral dermatitis, a red rash around the mouth

• perirenalperi·ren·al

  1. Prefixperi-around, surrounding
  2. +Rootren/okidney
  3. +Suffix-alpertaining to

  around the kidney, as in the perirenal space that holds the kidney and its cushion of fat

• periodontistperi·odont·ist

  1. Prefixperi-around, surrounding
  2. +Rootodont/otooth
  3. +Suffix-istspecialist, one who practices

  a dentist who specializes in the gums and bone around the teeth

• per-through
• para-beside, alongside
• circum-around, surrounding

Written for biofideX in plain words, after checking these references:

• 1.3 Common Prefixes – Medical Terminology 2e
• Appendix A: Word Parts and What They Mean
• PERI- Definition & Meaning - Merriam-Webster

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