*SET-U

GRAPH-WIDE SEARCH

MEASURE THE GRAPH ↗

NOT JUST A DICTIONARY LOOKUP

6 EVIDENCE COLLECTIONS

SEARCH
THE GRAPH.

Find a modern word—or search sideways through reconstructed roots, historical forms, meanings, languages, scholars, sources, claims, disputes, and witnesses.

WIKTIONARY VIA KAIKKI / WIKTEXTRACT

Imported dictionary evidence

SOURCE-IMPORTED · UNREVIEWED

These are source reports, not reviewed *SET-U ancestry. A list of templates or numbered etymologies is not an ancestor chain. Scholarly disagreements remain in the original source text.

35,981 English word records · 45,491 etymology sections in this online subset

PARTIAL ENGLISH COVERAGE · FULL CORPUS REMAINS LOCAL

3 source sections across 1 headword matching “Foul”. These are separate from the reviewed results below.

Open the permanent entry for foul →
foulEnglish (en) · Etymology 1Source text

Inherited from Middle English ffoul, foul, foull, fowel, fowle, fuyle, voul, vul, from Old English fūl (“foul, dirty, unclean, impure, vile, corrupt, rotten, stinking, guilty”), from Proto-West Germanic *fūl, from Proto-Germanic *fūlaz (“foul, rotten”), from Proto-Indo-European *puH- (“foul, rotten”). Cognates Cognate with Central Franconian fuul (“putrid, rotten; lazy, workshy”), Cimbrian baul, vaul (“putrid, rotten”), Dutch vuil (“dirty, foul; lewd, obscene; dishonorable; illegal”), German faul (“foul, putrid, rotten; lazy”), Yiddish פֿױל (foyl, “putrid; lazy”), Danish ful (“nasty, ugly”), Icelandic fúll (“foul, rotten, sullen”), Norwegian Bokmål and Norwegian Nynorsk ful (“clever, sly”), and Swedish ful (“ugly; bad, dirty”), Gothic 𐍆𐌿𐌻𐍃 (fuls, “fetid, foul, putrid”), and through Indo-European, with Latin puter (“decaying, rotten; friable, crumbling”), Greek πύο (pýo), πύον (pýon, “pus”), Albanian fëlliq (“to make dirty, sully”), Latvian pūt (“to rot”), Lithuanian pūti (“to rot”), Armenian փուտ (pʻut, “rottenness”), Persian پوده (pude, “rubbed, worn; foul, rotten; empty, hollow”), Sanskrit पूयति (pūyati, “to become foul; to stink”). More at putrid. Ancient Greek φαῦλος (phaûlos, “bad”) is a false cognate inasmuch as it is not from the same etymon, instead being cognate to few.

Original Wiktionary entry and references ↗
foulEnglish (en) · Etymology 2Source text

Inherited from Middle English foulen, fulen, from Old English fūlian (“to become foul; rot; decay”), from Proto-West Germanic *fūlēn, from Proto-Germanic *fūlāną (“to rot; decay”).

Original Wiktionary entry and references ↗
foulEnglish (en) · Etymology 2Source text

Inherited from Middle English foulen, fulen, from Old English fūlian (“to become foul; rot; decay”), from Proto-West Germanic *fūlēn, from Proto-Germanic *fūlāną (“to rot; decay”).

Original Wiktionary entry and references ↗

From Wiktionary contributors; extracted by Tatu Ylonen / Wiktextract / Kaikki.org. Extraction source · CC-BY-SA-4.0. Selected source text is reformatted for display; language and section identity are retained.

Source dump: 2026-10-01 · Extraction: 2026-10-30. These dates identify a dump snapshot, not an individual page revision.

Snapshot checksums and coverage
SOURCE SHA-256
5ff2c072f8099f2d2ce484bd6957bf179f046d2ad37bc36555edf8bb84cb5291
CORPUS SHA-256
c4c2a77325141846709230e11c2959332acd630d53e52905b72d36211251b081
IMPORT RUN
73216b9a9b78ed3830994bf853103716f5a4dc57099e371e9f8fdc468facca26
SUBSET SELECTION
English-only: shortest normalized query first, then binary lexical order; complete word-language and case-variant groups only. This is a bounded online subset, not the full acquired corpus.

INDEPENDENT SOURCE LIBRARY

More sources for this spelling

These are spelling matches, not a claim of identical senses or agreement. Historical accounts retain their own editions and limits; none is automatically promoted into reviewed ancestry.

Browse the independently attributed sources →
SEARCH NEEDS THE LIVE GRAPH.

The query “foul” cannot be resolved without D1. No static search results are fabricated.

06

SEARCH IS DISCOVERY, NOT PROOF

EVERY RESULT OPENS A PERMANENT EVIDENCE RECORD.

Matching text only locates a record. It does not raise confidence, settle a dispute, establish cognacy, or turn a source report into direct inspection. Follow the result into its citations and editorial limits.