See the etymology of the corresponding lemma form.
GRAPH-WIDE SEARCH
MEASURE THE GRAPH ↗NOT JUST A DICTIONARY LOOKUP
6 EVIDENCE COLLECTIONSSEARCH
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
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 LOCALNo exact match for “equa” in this partial English subset. That does not mean the full research corpus—or linguistic scholarship—has no record. Check the original dictionary entry ↗
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.
Lewis’s Elementary Latin Dictionary
1890 American Book Company edition; pinned Perseus XML digitizationequa
This word is outside the curated dossier collection. Here is the dictionary’s etymology, with its language and revision preserved. These claims have not yet passed *SET-U’s graph review.
See the etymology of the corresponding lemma form.
From equus ( “ horse ” ) + -a ( feminine suffix ) .
Read the complete entry and references ↗ · Contribute a cited dossier
014
MODERN ENTRY POINTS
WORD DOSSIERS
nouncontrarian claim
algebra
A mathematical discipline whose English name travels through Medieval Latin from Arabic al-jabr, restoration or completion.
OPEN THE FULL LINEAGE ↗Middle Irish noundossier summary
cais
eDIL separates two Irish headwords written cais. The first, also recorded as caise, is explicitly explained both as love and as hate; its cited passages and glossary equations range from searc and grádh "love" to miscais and mioscais "hatred", with context deciding individual readings. One Éigse line is tentatively translated so that the same visible form occurs on both sides: "my love ... is met by hatred(?)". The question mark matters. The second eDIL headword cais means "eye" and is excluded from this semantic lineage. These records establish a remarkable lexicographic opposition, not one timeless essence, a chronology from love to hate, or proof that every occurrence belongs to one historically indivisible sense. John T. Koch compares the noun with Proto-Celtic *katsi- < *kad-t/si- and a wider *kad- family, but that ancestry and its proposed Germanic comparison remain open. eDIL itself generally supplies etymologies only selectively. No manuscript pixels were directly inspected, no earliest-use or historical-frequency claim is made, and no exact pronunciation is invented.
OPEN THE FULL LINEAGE ↗Old Norse noun, chiefly neutercontrarian claim
hatr
An Old Norse noun for hatred, enmity, or spite. The University of Copenhagen Dictionary of Old Norse Prose gives the main neuter entry 54 citations, while a separately analyzed masculine entry has only one citation and is flagged as possibly an elementary error. The neuter corpus also contains one cautiously proposed mockery or scorn sense aligned with Latin irrisio. A c.1150-1200 manuscript visibly preserves Hatr in a line ONP transcribes Hatr hafa þeir engla and aligns with Latin Odium. The reviewed ancestry joins the Germanic *hatiz- family, preserves the disputed *ḱh₂d-es- and *ḱeh₂d- comparison, and then stops.
OPEN THE FULL LINEAGE ↗Old High German weak-verb citation formdossier summary
hazzōn
An Old High German citation form in the inherited Germanic hate-verb family, printed beside hazzēn and spelling variants hazēn, hazōn, haʒʒēn, and haʒʒōn. Starling’s source record dates hazzēn to the eighth century and hazzōn to the ninth; Duden and Grimm’s DWB group the ēn and ōn forms in the history of German hassen. Corpus-wide research independently shows that some Old High German class-III ēn verbs also occur with class-II ōn forms, but the accessible abstract does not establish that hazzōn is one of its twenty repeatedly attested double forms. DWB reports haʒôn aligned with Latin aemulari and the forms hatamas and hatent with insequamur and insequuntur. Those reports support an action range involving following or hostile pursuit; they are not directly inspected manuscript tokens. Pokorny’s account, as transmitted by Starling, explicitly warns that the Germanic evidence does not prove “pursue” was the root’s basic meaning. The route therefore distinguishes the normalized headword, the combined historical variants, the reconstructed Germanic weak verb and noun family, the qualified Indo-European comparison, and the point where knowledge ends.
OPEN THE FULL LINEAGE ↗021
ATTESTED / RECONSTRUCTED / BOUNDARY
HISTORICAL FORMS
039
WHERE INTERPRETATION IS TESTED
CLAIMS & DISPUTES
SCHOLARLY DISPUTES / 6
resolvedestablishedposition text
Did algebra originally mean symbols and variables?
No. Al-jabr named restoration or completion, including a specific equation-solving operation; the word later expanded to the discipline.
resolvedestablishedposition text
Are love and hate merely two modern search results rather than one lexicographic headword?
No. eDIL places both explanations, glossary equations, and citations inside headword 1 cais, also caise.
resolvedestablishedposition text
Do 188 Middle English quotations equal the complete history of fiend?
No. They are the Middle English Dictionary’s current quotation set across eight senses, not every historical utterance, lost witness, or surviving token.
resolvedestablishedposition text
Do 188 Middle English quotations equal the complete history of fiend?
No. They are the Middle English Dictionary’s current quotation set across eight senses, not a count of every historical utterance or surviving token.
resolvedestablishedposition text
Do the two ONP entries prove two equally secure Old Norse nouns?
No. Editorial separation records an analytical problem; the 54-to-1 citation imbalance and explicit error warning make equal security unjustified.
resolvedestablishedposition text
Does the Cotton manuscript date equal the Heliand composition date?
No. Biblissima dates the copy to the middle or second half of the tenth century; the Heliand work itself is earlier.
CONTRARIAN TRUTHS / 3
RANK 59GRADE A-ranked reveal
Old Norse hatr has a 54-to-1 grammar problem.
The University of Copenhagen’s Dictionary of Old Norse Prose separates a 54-citation neuter noun from a one-citation masculine analysis—and flags the lone masculine assignment as possibly an elementary error. A directly inspected c.1150-1200 manuscript visibly preserves Hatr, but a visible token cannot settle gender by itself. The reveal is not that Old Norse had two equally secure hate nouns; it is that rigorous lexicography preserves the fracture instead of hiding it.
RANK 137GRADE A-ranked reveal
Middle Irish cais could mean love or hate—and a separate cais meant eye.
eDIL's first numbered cais headword is explicitly explained as both love and hate. Its glossary evidence equates the form with serc and grádh on the love side and miscais or mioscais on the hatred side; cited passages likewise cross the divide. Most strikingly, one Éigse line is tentatively translated "my love ... is met by hatred(?)", placing the same visible form on both sides while preserving the editor's question mark. Then eDIL's second numbered cais headword breaks the spell entirely: it means eye. The unveiling is not that love and hate were secretly identical. It is that written identity, lexicographic grouping, contextual meaning, and historical ancestry are four different claims.
RANK 175GRADE Aranked reveal
Algebra named restoration before it named symbols.
Arabic al-jabr was an operation of restoring or completing an equation—and also had a real bone-setting history.
040
BOOKS / DICTIONARIES / ARTICLES / DATABASES
SOURCES
No reviewed record in this collection contains “equa.” Absence describes this graph, not all of linguistic scholarship.
053
FIRST USES & HISTORICAL OBJECTS
ATTESTATION WITNESSES
DIRECTLY INSPECTEDprinted book
John Harris’s Lexicon technicum prints ALGEBRA as a headword and identifies it as an analytic art concerned with equations.
algebra / algebra / 1704
Lexicon technicum: or, an universal English dictionary of arts and scienceswitness excerpt / OPEN RECORD ↗SOURCE REPORTEDlexical corpus record
Graff lexical record aligned with Latin insequamur
haʒʒēn / haʒʒōn / hassen / Old High German record, source-reported
Deutsches Wörterbuch von Jacob Grimm und Wilhelm Grimm — hassenwitness excerpt / OPEN RECORD ↗SOURCE REPORTEDlexical corpus record
Graff lexical record aligned with Latin insequamur
haʒʒēn / haʒʒōn / hazzōn / Old High German lexical record, source-reported
Deutsches Wörterbuch von Jacob Grimm und Wilhelm Grimm — hassenwitness excerpt / OPEN RECORD ↗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.