Word.ws English Dictionary

swear on

swear on is the alternative form of swear upon.

Meaning of swear upon

Verb

swear upon (third-person singular simple present swears upon, present participle swearing upon, simple past swore upon, past participle sworn upon)

  1. (formal, transitive) To take an oath on someone or something.
    • to swear upon the Holy Writ to speak the truth

Forms of swear on

third-person singular presentswears on
present participleswearing on
pastswore on
past participlesworn on

Words formed from swear on

Questions about swear on

What is swear on the alternative form of?
Swear on is the alternative form of swear upon.

Words near swear on in the dictionary

  1. swear like a cutter
  2. swear like a pagan
  3. swear like a sailor
  4. swear like a trooper
  5. swear off
  6. swear on
  7. swear on a stack
  8. swear on a stack of Bibles
  9. swear out
  10. swear the peace
  11. swear to God

Source and license

Adapted from Wiktionary: swear on (page history and authors); swear upon (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “swear on.” Word.ws, https://word.ws/swear_on. Based on Wiktionary, CC BY-SA 4.0.