-or

UK/ə/Canada, US/ɚ/

suffix

Creates an agent noun, often from a verb, indicating a person or object (often machines or parts of them) that do the verb or part of speech with which they are formed.

“err + -or → error”

Similar

Meanings

-or1

suffix-or (noun-forming suffix, plural -ors)

plural -ors · alternative obsolete -our

  1. Creates an agent noun, often from a verb, indicating a person or object (often machines or parts of them) that do the verb or part of speech with which they are formed.

    settle + -or → settlor

    1 more example

    survive + -or → survivor

    Synonyms: -er, -ster

  2. businessAppended to the names of members of classes of components, especially those that have an extensive property name of the same root suffixed with -ance

    Resistors possess resistance and inductors possess inductance.

-or2

suffix-or (noun-forming suffix, plural -ors)

plural -ors · alternative obsolete -our

  1. Used to form nouns of quality, state, or condition.

    err + -or → error

Synonyms & antonyms

suffixCreates an agent noun, often from a verb, indicating a person or object (often machines or parts of them) that do the verb or part of speech with which they are formed.

Similar
Also see

Origin

-or · suffix

  1. Latin-ātor
  2. Old French-eor
  3. Middle English-our
  4. English-or

From Middle English -our, from Old French -eor, from Latin -ātor; reinforced by Old French -or and its source, Latin -tor, -tōrem.

Full word history & related roots →

-or · suffix

  1. Latin-or
  2. English-or

From Latin -or.

Full word history & related roots →

Rhymes & wordplay

Sounds the same

-er-a (non-rhotic)
Cite this entry
APA

-or. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/-or

MLA

“-or.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/-or. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “-or,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/-or.

Source: -or on Wiktionary, CC BY-SA 4.0.