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Enter any Latin word — inflected or not. You get every structurally valid morphological reading from the Lingua Sacra analyzer, and the Lewis & Short entry for each lemma it resolves to.

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ergonormalized · ergo3 analyses · 3 lemmas
Lemma 1ērgō
conjunction
therefore; well, then, now
Morphology1 analysis
inv.ergo · regular
Lewis & Short
ergō, [for e-regō, from ex and root rag-, to extend upward; , L. rego, ragen; erga, and Corss. Ausspr. 1, 448 ]
o in Ov. and the poets, Lennep., proceeding from or out of.
With (placed after it, like causa and gratia), in consequence of, on account of, because of (ante-class, but not in Plaut. or Ter.): § 3; : dono militari virtutis ergo donari, S. C. ; so, virtutis ergo, Lex ; Sisenn. : ejus victoriae ergo, Inscr. : funeris ergo, Lex
(for cujus rei ergo), consequently, accordingly, therefore, then (): unus homo nobis cunctando restituit rem: ergo postque magisque viri nunc gloria claret, Enn. — The reason or cause sometimes follows with quia, quod — Ante- and postclass. pleonast. — Drak.
In a logical conclusion, consequently, therefore: ; and 15 ; consecutively, igitur. ergo. ergo. igitur. — with si, cum, quia, — in Cicero, like an ( an I. D.), in interrogative argumentation, a minore ad majus, or ex aequo, so, so then; with the future, § 41.
In interrogations.
When an explanation is asked, do you say? do you mean? then: S. Quo agis? P. Quo tu?. S. Quo ergo, scelus?: Ipsus es? Ch. Ipsus Charmides sum. S. Ergo ipsusne es?.
When a consequence is inquired for, then: Ps. lstuc ego jam satis scio. Si. Cur ergo, quod scis, me rogas? — , quid ergo? like the , why then? but why? quid ergo hanc dubitas colloqui?
With imperatives and words used imperatively, then, now, accordingly; ausculta ergo — with the — And with the future.
Like igitur, in resuming an interrupted train of thought, as I was saying; I say, then; well then — (like igitur and inquam) after parenthetical sentences. — Less for inquam in a mere repetition; or in beginning a subject with reference to the expectation of the auditors ( ), then, now. See Hand Turs. II. pp. 440-467.
Lemma 2ergo, ergare, ergavi, ergatus
verb
c. circo · therefore; well, then, now
Morphology1 analysis
present indicative active 1st singularerg + o · regular
Lewis & Short
ergō, [for e-regō, from ex and root rag-, to extend upward; , L. rego, ragen; erga, and Corss. Ausspr. 1, 448 ]
o in Ov. and the poets, Lennep., proceeding from or out of.
With (placed after it, like causa and gratia), in consequence of, on account of, because of (ante-class, but not in Plaut. or Ter.): § 3; : dono militari virtutis ergo donari, S. C. ; so, virtutis ergo, Lex ; Sisenn. : ejus victoriae ergo, Inscr. : funeris ergo, Lex
(for cujus rei ergo), consequently, accordingly, therefore, then (): unus homo nobis cunctando restituit rem: ergo postque magisque viri nunc gloria claret, Enn. — The reason or cause sometimes follows with quia, quod — Ante- and postclass. pleonast. — Drak.
In a logical conclusion, consequently, therefore: ; and 15 ; consecutively, igitur. ergo. ergo. igitur. — with si, cum, quia, — in Cicero, like an ( an I. D.), in interrogative argumentation, a minore ad majus, or ex aequo, so, so then; with the future, § 41.
In interrogations.
When an explanation is asked, do you say? do you mean? then: S. Quo agis? P. Quo tu?. S. Quo ergo, scelus?: Ipsus es? Ch. Ipsus Charmides sum. S. Ergo ipsusne es?.
When a consequence is inquired for, then: Ps. lstuc ego jam satis scio. Si. Cur ergo, quod scis, me rogas? — , quid ergo? like the , why then? but why? quid ergo hanc dubitas colloqui?
With imperatives and words used imperatively, then, now, accordingly; ausculta ergo — with the — And with the future.
Like igitur, in resuming an interrupted train of thought, as I was saying; I say, then; well then — (like igitur and inquam) after parenthetical sentences. — Less for inquam in a mere repetition; or in beginning a subject with reference to the expectation of the auditors ( ), then, now. See Hand Turs. II. pp. 440-467.
Lemma 3ērgō
adverb
proceeding from, out of. · therefore; well, then, now
Morphology1 analysis
positiveergo · regular
Lewis & Short
ergō, [for e-regō, from ex and root rag-, to extend upward; , L. rego, ragen; erga, and Corss. Ausspr. 1, 448 ]
o in Ov. and the poets, Lennep., proceeding from or out of.
With (placed after it, like causa and gratia), in consequence of, on account of, because of (ante-class, but not in Plaut. or Ter.): § 3; : dono militari virtutis ergo donari, S. C. ; so, virtutis ergo, Lex ; Sisenn. : ejus victoriae ergo, Inscr. : funeris ergo, Lex
(for cujus rei ergo), consequently, accordingly, therefore, then (): unus homo nobis cunctando restituit rem: ergo postque magisque viri nunc gloria claret, Enn. — The reason or cause sometimes follows with quia, quod — Ante- and postclass. pleonast. — Drak.
In a logical conclusion, consequently, therefore: ; and 15 ; consecutively, igitur. ergo. ergo. igitur. — with si, cum, quia, — in Cicero, like an ( an I. D.), in interrogative argumentation, a minore ad majus, or ex aequo, so, so then; with the future, § 41.
In interrogations.
When an explanation is asked, do you say? do you mean? then: S. Quo agis? P. Quo tu?. S. Quo ergo, scelus?: Ipsus es? Ch. Ipsus Charmides sum. S. Ergo ipsusne es?.
When a consequence is inquired for, then: Ps. lstuc ego jam satis scio. Si. Cur ergo, quod scis, me rogas? — , quid ergo? like the , why then? but why? quid ergo hanc dubitas colloqui?
With imperatives and words used imperatively, then, now, accordingly; ausculta ergo — with the — And with the future.
Like igitur, in resuming an interrupted train of thought, as I was saying; I say, then; well then — (like igitur and inquam) after parenthetical sentences. — Less for inquam in a mere repetition; or in beginning a subject with reference to the expectation of the auditors ( ), then, now. See Hand Turs. II. pp. 440-467.
Ambiguity is kept

Every structurally valid lemma-analysis pair is shown. Nothing is silently collapsed to a single preferred parse.

Ordering is not judgment

Candidates are ordered by Collatinus lemma frequency from the LASLA corpus — classical counts, not Ecclesiastical or Vulgate measurements.

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æ → ae, œ → oe, j → i, v → u, and vowel-quantity marks are stripped before lookup. The form you typed is preserved above.

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