a person who mediates, especially between parties at variance.

Nearby words

  1. mediate percussion,
  2. mediated generalization,
  3. mediation,
  4. mediative,
  5. mediatize,
  6. mediatorial,
  7. mediatory,
  8. mediatrix,
  9. medibank,
  10. medic

Origin of mediator

1250–1300; < Late Latin (see mediate, -tor); replacing Middle English mediatour < Anglo-French < Late Latin, as above

Related formsme·di·a·tor·ship, nounun·der·me·di·a·tor, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for mediator

Word Origin and History for mediator



mid-14c., from Late Latin mediatorem (nominative mediator) "one who mediates," agent noun from past participle stem of mediari "to intervene, mediate," also "to be or divide in the middle," from Latin medius "in the middle" (see medial (adj.)). Originally applied to Christ, who in Christian theology "mediates" between God and man. Meaning "one who intervenes between two disputing parties" is first attested late 14c. Feminine form mediatrix (originally of the Virgin Mary) from c.1400. Related: Mediatorial; mediatory.

Online Etymology Dictionary, © 2010 Douglas Harper