*SET-U

English word origin

Etymology of bog

Inherited from Middle English bog (originally chiefly in Ireland and Scotland), from Irish and Scottish Gaelic bogach (“soft, boggy ground”), from Old Irish bog (“soft”), from Proto-Celtic *buggos (“soft, tender”) + Old

5 source sectionsExtended source reportWiktionary original ↗
In this entry · 5 source sections

The source etymologies

Wiktionary via Kaikki / Wiktextract

The source reports below are imported and unreviewed by *SET-U. Separate numbered origins and differing source variants are preserved; agreement within this extraction is not independent corroboration.

Source etymology 1

Original entry ↗
noun

An area of decayed vegetation (particularly sphagnum moss) which forms a wet spongy ground too soft for walking. · An acidic, chiefly rain-fed (ombrotrophic), peat-forming wetland. (Contrast an alkaline fen, and swamps and marshes.) · Boggy ground. · Confusion, difficulty, or any other thing or place that impedes progress in the manner of such areas.

verb

To sink or submerge someone or something into bogland. · To prevent or slow someone or something from making progress. · To sink and stick in bogland. · To be prevented or impeded from making progress, to become stuck.

Selected source glosses provide context, not a complete modern definition inventory

Inherited from Middle English bog (originally chiefly in Ireland and Scotland), from Irish and Scottish Gaelic bogach (“soft, boggy ground”), from Old Irish bog (“soft”), from Proto-Celtic *buggos (“soft, tender”) + Old Irish -ach, from Proto-Celtic *-ākos. The frequent use to form compounds regarding the animals and plants in such areas mimics Irish compositions such as bog-luachair (“bulrush, bogrush”). Its use for toilets is now often derived from the resemblance of latrines and outhouse cesspools to bogholes, but the noun sense appears to be a clipped form of boghouse (“outhouse, privy”), which derived (possibly via boggard) from the verb to bog, still used in Australian English. The derivation and its connection to other senses of "bog" remains uncertain, however, owing to an extreme lack of early citations due to its perceived vulgarity.

Relationships mentioned by the source

These are extracted mentions, not a timeline or a verified sequence of immediate parents.

  • Inherited-form mentionbogenm
  • Derivation mentionbogachgd
  • Derivation mentionbogsga
  • Derivation mention*buggoscel-pro
  • Derivation mention-achsga
  • Derivation mention*-ākoscel-pro

This page abbreviates 7 auxiliary source items. The etymology narrative is not shortened. Omission counts are available in the audit fields below; consult the original for complete auxiliary material.

Inspect preserved source fields

Raw extraction fields are retained for auditing. Their order does not establish ancestry.

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Source etymology 2

Original entry ↗
noun

Alternative form of bug: a bugbear, monster, or terror.

Selected source glosses provide context, not a complete modern definition inventory

See bug

Inspect preserved source fields

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Source etymology 3

Original entry ↗
noun

Puffery, boastfulness.

verb

To provoke, to bug.

adj

Bold; boastful; proud.

Selected source glosses provide context, not a complete modern definition inventory

Uncertain, although possibly related to bug in its original senses of "big" and "puffed up".

Inspect preserved source fields

Raw extraction fields are retained for auditing. Their order does not establish ancestry.

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Source etymology 4

Original entry ↗
verb

To go away.

Selected source glosses provide context, not a complete modern definition inventory

From bug off, a clipping of bugger off, likely under the influence of bog (coarse British slang for "toilet[s]").

Inspect preserved source fields

Raw extraction fields are retained for auditing. Their order does not establish ancestry.

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Source etymology 5

Original entry ↗
verb

To perform excessive cosmetic surgery that results in a bizarre or obviously artificial facial appearance. · To have excessive cosmetic surgery performed on oneself, often with a poor or conspicuously unnatural result.

Selected source glosses provide context, not a complete modern definition inventory

From an abbreviation of Bogdanoff, in reference to Igor and Grichka Bogdanoff.

Inspect preserved source fields

Raw extraction fields are retained for auditing. Their order does not establish ancestry.

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Where this record stops

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Contribute located evidence for bog →

Source and snapshot

Imported from Wiktionary contributors; extracted by Tatu Ylonen / Wiktextract / Kaikki.org. Selected fields are reformatted and grouped; wording, source identity and etymology sections are retained. CC-BY-SA-4.0 applies to the imported source material.

Dump: 2026-10-01 · Extracted: 2026-10-30. These are snapshot dates, not the word’s first attestation or the page’s revision date.

Source entry and bibliography ↗Wiktionary revision history ↗Acquisition and rights ledger
Machine-source provenance
Source SHA-256
5ff2c072f8099f2d2ce484bd6957bf179f046d2ad37bc36555edf8bb84cb5291
Import run
73216b9a9b78ed3830994bf853103716f5a4dc57099e371e9f8fdc468facca26
Permanent entry ID
w-Ym9n