Hortatory & Jussive Subjunctive
When a Roman wants to urge "let us…" or command "let him…," he doesn't reach for the imperative — he uses the present subjunctive in a main clause.
Eāmus = "let us go." Fīat lūx = "let there be light." Caveant intemperantiam = "let them shun excess." Same form, two persons, one job: a softened command from speaker to group or third party.
The negative is the giveaway: hortatory always takes nē, never nōn (nē timeāmus = "let us not fear"). And it splits cleanly from the imperative — Latin reserves amā! and amāte! for direct "you" commands.
The trap to know up front: A&G splits the names (1st pl. = hortatory, 3rd = jussive), but the construction is identical, and the imperfect/pluperfect of the same form does something completely different — "he should have died," not "let him die."
An exhortation or command from the speaker — "let us…" for 1st plural, "let him/her/them…" for 3rd person.
Use the imperative for direct 2nd-person commands. The hortatory's 2nd person is mostly poetic or for an indefinite "you."
See It In Action
— B. G. vii. 38
Vercingetorix rallying the Gauls. Notice no ut, no nē, no question — just the bare 1st-plural subjunctive. That's the whole hortatory signature.
— Cic. Off. i. 122
Cicero advising young men. Two parallel 3rd-plural subjunctives — A&G calls these "jussive," but the construction is identical to the hortatory "let us" type.
— Cic. Verr. v. 4
The same form pivots from command to concession: "let him be a thief" → "granted he is a thief." Cicero quotes the imagined defense of Verres just to demolish it. (A&G § 440.)
— Cic. Att. ii. 1. 3
Same construction, shifted tense: pluperfect of the hortatory means "you ought to have / shouldn't have." Translate with should, never would — would belongs to the potential subjunctive.
Latin uses different forms for "you, do X!" and "let us / let him do X." Picking the wrong one mistranslates the speaker.
direct command to "you" — amā! amāte!
venī, vidī, vīcī
come! (he came, he saw, he conquered — but venī! alone is "come!")
softened command via the speaker — "let us / let him X"
eāmus; fīat lūx
let us go; let there be light
Tip: Ask: who's being told to act? If it's "you" face-to-face, use the imperative. If it's "us" or "him/her/them," the present subjunctive does the work — and the negative shifts from nōlī + infinitive to nē + subjunctive.
In Vercingetorix's speech hōs latrōnēs interficiāmus (B. G. vii. 38), why is interficiāmus subjunctive instead of imperative?
Study Tips
- •When you see a present subjunctive opening a sentence with no conjunction, check the person first: 1st plural = "let us," 3rd singular/plural = "let him/her/them." That's almost always hortatory.
- •Memorize nē as the hortatory negative — if you see nōn with what looks like a hortatory verb, you're probably reading a potential subjunctive instead.
- •Translate with "let" as your default English auxiliary; only swap to "may" if the sentence feels like a wish (then it's optative, not hortatory).
- •Watch for the imperfect/pluperfect form (morerētur, poposcissēs) — those mean "should have," not "let him." Same mood, different time, different teaching.