Memini, Odi, and Novi

The verbs meminī “remember,” ōdī “hate,” and nōvī “know” look like perfects because they use perfect-system endings. In their established lexical meanings, however, they describe present states: meminī is “I remember,” not normally “I remembered”; ōdī is “I hate”; nōvī is “I know.” Their completed morphology expresses a resulting state—roughly “I have called to mind,” “I have come to hate,” and “I have become acquainted with”—which Classical usage treats as present.

All three are (neutral Classical), though ōdī can carry a stronger and more literary emotional force than milder verbs of dislike. They are defective: they do not supply an ordinary present-stem paradigm for these state meanings. Their active-looking perfect forms are active in syntax and normally take an accusative object, subject to the special case patterns of meminī.

One morphological system, shifted time values

Morphological formmeminīōdīnōvīUsual time value
perfectI rememberI hateI knowpresent state
pluperfectI rememberedI hatedI knewpast state
future perfectI shall rememberI shall hateI shall knowfuture state
perfect infinitiveto rememberto hateto knowsimultaneous state in context

This shift is lexical, not a general license to translate Latin perfects as English presents. Ordinary vīdī still means “I saw” or “I have seen.” Learn these three verbs as special dictionary entries.

Vultum tuum meminī, sed nōmen mihi excidit.

I remember your face, but the name has slipped my mind.

Fraudem ōdī, quīcumque eam facit.

I hate deceit, whoever commits it.

Illam viam nōvimus; saepe eā ad mare ambulāmus.

We know that road; we often walk along it to the sea.

💡
Keep morphology and lexical time in separate columns: “perfect indicative in form, present in meaning.” That description is more accurate than calling meminī a regular present.

The person-number paradigms

The present-state forms use the ordinary perfect active endings.

Personmeminīōdīnōvī
1st singularmeminīōdīnōvī
2nd singularmeministīōdistīnōvistī
3rd singularmeminitōditnōvit
1st pluralmeminimusōdimusnōvimus
2nd pluralmeministisōdistisnōvistis
3rd pluralmeminēruntōdēruntnōvērunt

Person and number are still fully visible. Nōvistis is “you all know,” not merely an undifferentiated word meaning “know.” English supplies the present form, but Latin supplies person and number through perfect morphology.

Meministisne quid herī magister praecēperit?

Do you all remember what the teacher instructed yesterday?

Cīvēs tyrannum ōdērunt, sed patriam amant.

The citizens hate the tyrant, but they love their country.

Past and future states

The pluperfect forms memineram, ōderam, nōveram generally function as ordinary pasts: “I remembered, hated, knew.” The future-perfect forms meminerō, ōderō, nōverō generally function as ordinary futures: “I shall remember, hate, know.” The morphological step back from perfect to pluperfect corresponds to a semantic step from present state to past state.

Nōmen tabernae nōn memineram, sed locum bene nōveram.

I did not remember the shop's name, but I knew the place well.

Postquam causam audīveris, hominem fortasse minus ōderis.

After you have heard the case, perhaps you will hate the man less.

In the second example ōderis is future perfect indicative in form and future in lexical time. It is also identical to a possible perfect subjunctive form; postquam with a future reference and the main-clause fortasse interpretation establish the intended reading. Visible morphology must be interpreted within syntax.

Infinitives and subjunctives

The perfect infinitives meminisse, ōdisse, and nōvisse normally express the same state meanings as the finite perfect forms: “to remember, hate, know.” In indirect statement their time is usually simultaneous with the reporting context, despite their perfect morphology.

Dīcit sē veteris amīcī meminisse.

He says that he remembers his old friend.

Puto tē hunc poētam nōvisse.

I think that you know this poet.

Perfect-subjunctive-shaped meminerim, ōderim, and nōverim can carry present-state subjunctive value. Pluperfect-subjunctive-shaped meminissem, ōdissem, and nōvissem can carry past-state subjunctive value. Mood comes from the clause; the unusual lexical time comes from the verb.

Nēmō est quī omnia nōverit.

There is no one who knows everything.

The relative clause of characteristic requires the subjunctive nōverit. Translating it “has known” merely because it is morphologically perfect would distort its function.

The participial inventory is also lexical rather than freely predictable. Ōdī has the future active participle ōsūrus “going to hate”; the present participle meminēns is early or late, not a neutral Classical form to produce. Participles such as nōtus belong to the full verb nōscō and carry their own passive or resultative values.

The special history of nōvī

Unlike meminī and ōdī, nōvī belongs to the full verb nōscō, nōscere, nōvī, nōtum “come to know, learn, recognize.” Present-stem nōscō describes acquisition or recognition; perfect nōvī describes the resulting knowledge.

Hunc hospitem vultū nōscō; frātrem eius iam diū nōvī.

I recognize this guest by his face; I have long known his brother.

English often uses “know” where Latin distinguishes recognition or acquisition with nōscō from established knowledge with nōvī. That does not make nōscō an invented present for defective nōvī: it is an attested verb with its own aspectual range.

Context can nevertheless preserve the ordinary perfect event-value of nōvī, “I learned” or “I became acquainted with,” especially in narrative. The present-state reading “I know” is common, not automatic: temporal adverbs and the sequence of events decide whether a passage foregrounds acquisition or its lasting result.

What meminī governs

Ōdī and nōvī ordinarily take an accusative: tyrannum ōdī, hunc locum nōvī. Meminī can take accusative or genitive. The accusative often presents a person, fact, or event as a remembered whole; the genitive often presents someone or something kept in mind. Personal pronouns are regularly genitive, while neuter pronouns are regularly accusative.

Illius diēī meminī, et omnia quae accidērunt meminī.

I remember that day, and I remember everything that happened.

The fine detail is lexical rather than reducible to English word order. See Genitive with Verbs of Remembering and Forgetting for the full contrast.

Commands: mementō and mementōte

Meminī has the distinctive future-imperative forms mementō (singular) and mementōte (plural), used with ordinary command force: “remember!” These are common in (formal) admonition, inscriptions, and elevated prose, and also occur as direct practical reminders. There is no corresponding productive imperative paradigm for ōdī or stative nōvī.

Mementō epistulam ante discessum mittere.

Remember to send the letter before your departure.

Mementōte vōs nōn sōlōs labōrāre.

Remember, all of you, that you are not working alone.

💡
Do not build memine by analogy with regular imperatives. The inherited command is mementō; its plural is mementōte.

Common Mistakes

1. Translating the perfect-shaped form as past

❌ Eum nōvī. — ‘I knew him.’

Incorrect as the unmarked lexical reading; nōvī normally denotes present knowledge.

✅ Eum nōvī et cotīdiē salūtō.

I know him and greet him every day.

2. Inventing a regular present stem

❌ Mendācia ōdeō.

Incorrect; ōdī uses perfect-system forms with present meaning.

✅ Mendācia ōdī.

I hate lies.

3. Treating pluperfect morphology as “had remembered” automatically

❌ Tum verba eius memineram. — ‘Then I had remembered his words.’

Misleading in the ordinary lexical system; memineram normally supplies a past state.

✅ Tum verba eius memineram, nunc oblītus sum.

Then I remembered his words; now I have forgotten them.

4. Giving meminī a regular present imperative

❌ Memine promissī!

Incorrect; this invents a regular singular imperative.

✅ Mementō promissī!

Remember your promise!

5. Using nominative where the verb requires an object

❌ Hic vir nōvī.

Incorrect for ‘I know this man’; the known person must be accusative.

✅ Hunc virum nōvī.

I know this man.

Key Takeaways

Perfect morphology gives meminī, ōdī, and nōvī present-state meanings. Their pluperfects usually supply past states, their future perfects future states, and their perfect infinitives simultaneous state meanings. Keep the real person-number endings, learn mementō/mementōte separately, and distinguish the process nōscō “come to know” from the resulting state nōvī “know.”

Now practice Latin

Reading grammar gets you part of the way. The exercises are where it sticks — free, no signup needed.

Start learning Latin →

Related Topics

  • Queo and NequeoB1 — Recognize the defective eō-pattern verbs queō and nequeō, use them with infinitives, and distinguish their attested forms from possum.
  • Coepi and InquamB1 — Handle the complementary defects of coepī ‘began’ and inquam ‘I say,’ including passive infinitives and parenthetical direct quotation.