The ablative of respect—also called the ablative of specification—limits a statement by answering “in what respect?” Nōmine rēx is “a king in name”: the person is not necessarily royal in every sense, but the label applies in the specified domain. English uses “in,” “with respect to,” “as regards,” or an idiomatic adjective; Latin can encode the restriction with a bare ablative.
The central idea: restrict the claim
An adjective or verb may make a broad claim. The ablative of respect narrows that claim to one feature, body part, category, or standard of description.
| Subtype | Question | Typical Latin | Register |
|---|---|---|---|
| Feature or quality | In what respect? | virtūte praestāre | (formal) prose |
| Body part | In what part? | alterō pede claudus | (formal) and medical description |
| Name versus reality | Under what description? | nōmine, rē | (formal) argumentative prose |
| Age or birth | By what measured feature? | aetāte, nātū | (formal) prose |
| Supine in -ū | With respect to doing what? | facile dictū | (formal), often concise or proverbial |
Helvētiī reliquōs Gallōs virtūte praecēdunt.
The Helvetii surpass the other Gauls in courage.
Frātrēs aetāte parēs sunt, ingeniō dissimilēs.
The brothers are equal in age but unlike in temperament.
Ille nōmine dux est, rē autem mīlitēs alius regit.
He is the commander in name, but in fact someone else leads the soldiers.
In each sentence, the ablative is not an instrument used to produce the predicate. Courage is the field in which the Helvetii excel; age is the dimension along which the brothers are equal; name and reality are contrasting domains in which the title does or does not hold.
Body parts and personal condition
Latin frequently uses the construction with a body part affected by an adjective or state. English often turns the same relation into “in one eye,” “lame in one foot,” or simply a compound adjective.
Senex alterō oculō caecus erat.
The old man was blind in one eye.
Post proelium alterō pede claudus mānsit.
After the battle he remained lame in one foot.
Mīles umerō vulnerātus est, cēterīs membrīs integer.
The soldier was wounded in the shoulder but unharmed in his other limbs.
This use overlaps historically and semantically with location: the injury is “in” the shoulder. It can also approach means or cause in contexts such as vulnerātus gladiō “wounded by a sword.” The noun’s semantic relation, not its ending alone, decides the analysis: umerō identifies the affected respect, while gladiō identifies the instrument.
Poets can instead use the Greek-influenced accusative of respect, especially with body parts. That construction is marked (literary) rather than the neutral Classical prose pattern taught here; see Greek Accusative of Respect.
The distinction is useful but not always absolute. Ancient speakers did not label each ablative, and a phrase such as vīribus vincit may be read as “he wins in strength” (respect) or “he wins by strength” (means). When both paraphrases fit, acknowledge the overlap instead of claiming a precision the sentence does not contain.
Status, origin, age, and comparison
Some nouns become conventional specifications. Nātiōne or genere can identify ethnic origin or lineage; aetāte and the ablative supine nātū locate someone on an age scale; animō and corpore contrast mental and physical condition.
Nātiōne Gallus erat, cīvitāte Rōmānus.
He was a Gaul by birth and a Roman by citizenship.
Mārcus frātre duōbus annīs māior nātū est.
Marcus is two years older than his brother.
Corpore senuit, animō iuvenis mānsit.
He grew old in body but remained young in spirit.
In the age sentence, several relations coexist. Frātre is ablative of comparison, duōbus annīs is ablative of degree of difference, and nātū specifies the respect in which māior is meant: older “by birth.” English compresses all three into “two years older than his brother.” Parsing must precede translation.
The citizenship example is (formal) and administrative in flavor. It does not mean that cīvitāte caused Roman status; it states the legal category under which the person counts as Roman.
Respect versus quality
The ablative of quality usually contains a noun plus a modifier and characterizes a person or thing: vir summā virtūte “a man of the highest courage.” The ablative of respect instead limits a predicate: cēterōs virtūte superat “he surpasses the others in courage.”
Lūcius est vir eximiā virtūte.
Lucius is a man of exceptional courage.
Lūcius cēterōs virtūte superat.
Lucius surpasses the others in courage.
This minimal contrast is structural. Eximiā virtūte forms a descriptive phrase with vir; virtūte supplies the dimension of superat. English “in courage” can sometimes translate either use, so translation alone is not a safe classifier.
The supine in -ū
A small group of fourth-declension verbal nouns has an ablative supine in -ū. With adjectives such as facilis, difficilis, mīrābilis, and horribilis, it specifies the action with respect to which the adjective is true. This is a restricted Classical construction, not a freely productive infinitive replacement.
Hoc facile dictū est, difficile factū.
This is easy to say but difficult to do.
Portentum erat horribile vīsū.
The omen was horrible to see.
Here dictū, factū, and vīsū are not ordinary participles and do not agree with hoc or portentum. They are fossilized-looking ablative verbal nouns: “easy with respect to saying,” “difficult with respect to doing,” and “horrible with respect to seeing.” The full morphology belongs on The Supine in -ū.
Respect after words of worthiness
The adjectives dīgnus “worthy” and indīgnus “unworthy” regularly govern the ablative in Classical prose. Traditional grammars group this with respect because the ablative names the honor, person, or standard in relation to which worthiness is judged.
Haec fēmina summō honōre dīgna est.
This woman is worthy of the highest honor.
The construction is ordinary (formal) Classical prose. Genitive alternatives occur in (informal) comedy and (literary) verse, and dīgnor with the ablative is especially (literary). For composition in a Classical prose norm, use ablative after dīgnus and indīgnus.
Parsing and production diagnostics
When a bare ablative stands beside an adjective or verb, ask:
- Does it name an instrument that produces the event? If so, means is more likely.
- Does it give a cause? If so, translate “because of” and test that analysis.
- Does it merely state the dimension within which the predicate is true? That is respect.
- Is there a noun plus modifier characterizing another noun? That favors quality.
- Is the form a supine in -ū after an evaluative adjective? That is a verbal specification.
The construction normally has no preposition. Adding in because English says “in courage” changes the Classical idiom rather than clarifying it.
Common Mistakes
1. Turning English “in” into an accusative object
❌ Frātrēs aetātem parēs sunt.
Incorrect—the age is not a direct object; it specifies the dimension in which the brothers are equal.
✅ Frātrēs aetāte parēs sunt.
The brothers are equal in age.
2. Treating the literary accusative of respect as neutral prose
Alterum oculum caecus est.
Literary and Greek-influenced: he is blind in one eye.
✅ Alterō oculō caecus est.
Neutral Classical prose: he is blind in one eye.
3. Confusing respect with means
❌ Ab umerō vulnerātus est.
Incorrect for ‘he was wounded in the shoulder’—ab makes the shoulder a supposed source or agent instead of the affected respect.
✅ Umerō gladiō vulnerātus est.
He was wounded in the shoulder with a sword—umerō is respect, gladiō is means.
4. Treating the supine as an agreeing adjective
❌ Haec sunt facilia dicta.
Wrong for ‘these things are easy to say’; dicta is a neuter plural participle, not the ablative supine.
✅ Haec sunt facilia dictū.
These things are easy to say.
Key Takeaways
The ablative of respect restricts a predicate to a domain: courage, name, age, body part, citizenship, or another specified feature. It is normally bare and can overlap with means, location, and quality; use the predicate and intended relation to decide. The supine in -ū is a specialized verbal extension of the same logic, but its combinations are limited and must be learned.
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- Ablative of PriceB1 — Express definite prices and things given in exchange with the ablative, while keeping the limited genitive value forms distinct.
- Ablative of QualityB1 — Describe a person or thing with a modified ablative phrase, especially for physical features, condition, character, and endowment.
- Ablative of Means and InstrumentA2 — Use the bare ablative for the tool, resource, method, or force by which an action is accomplished.
- Ablative of Place WhereB1 — Locate people and events with in plus the ablative, while distinguishing locatives, bare-place idioms, and motion constructions.
- Greek Accusative of RespectA2 — Read the chiefly poetic accusative that limits an adjective or passive participle to a body part, feature, or thing worn.
- The Supine in -uB2 — How the rare ablative supine identifies an action with respect to which something is easy, remarkable, or otherwise evaluated.