Peri-

//ˌpɛɹ.ə-// prefix

prefix ·Rare ·Advanced level

Definitions

Prefix
  1. 1
    surrounding morpheme

    "peri- + meter → perimeter"

  2. 2
    near morpheme

    "peri- + helion → perihelion"

  3. 3
    during morpheme

    "peri- + natal → perinatal"

Antonyms

All antonyms

Etymology

From Ancient Greek περί (perí, “about, around”). Cognate to for via Proto-Indo-European.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.