LATIN DICTIONARYLexicon Latīnum
verbfirst conjugation

peierō

peierō (present infinitive peierāre, perfect active peierāvī, supine peierātum)
Classical[ˈpɛj.jɛ.roː]Ecclesiastical[ˈpɛː.je.ro]

Meaning

  1. to swear a false oath
  2. to perjure oneself

Choosing the right word Döderlein's Latin Synonyms

Perlucidus · Pellucidus · Perlegere · Pellegere · Perlicere · Pellicere · Perjurare · Pejerare

1. Perlucidus means very bright, whereas pellucidus, transparent. Cic. Civ. i. 57. 2. Perlegere means to read through, that is, from beginning to end; whereas pellegere, to read over, that is, not to leave unread. Plaut. Pseud. i. 1. 3. Perlicere means completely to inveigle, Liv. iv. 15. Tac. Ann. xiii. 48; whereas pellicere, to lead astray. 4. Perjurare means to swear falsely; pejerare, to violate an oath. (ii. 82.)

Conjugation conjugation 1

active indicative
formpresentimperfectfutureperfectpluperfectfut. perfect
1st sg.peierōpeierābampeierābōpeierāvīpeierāverampeierāverō
pēierārō
2nd sg.peierāspeierābāspeierābispeierāvistī
pēierāstī
peierāverās
pēierārās
peierāveris
3rd sg.peieratpeierābatpeierābitpeierāvitpeierāverat
pēierārat
peierāverit
pēierārit
1st pl.peierāmuspeierābāmuspeierābimuspeierāvimuspeierāverāmuspeierāverimus
pēierārimus
2nd pl.peierātispeierābātispeierābitispeierāvistis
pēierāstis
peierāverātis
pēierārātis
peierāveritis
pēierāritis
3rd pl.peierantpeierābantpeierābuntpeierāvērunt
peierāvēre, pēierārunt
peierāverant
pēierārant
peierāverint
pēierārint
active subjunctive
active subjunctive
formpresentimperfectperfectpluperfect
1st sg.peierempeierārempeierāverim
pēierārim
peierāvissem
pēierāssem
2nd sg.peierēspeierārēspeierāverīspeierāvissēs
pēierāssēs
3rd sg.peieretpeierāretpeierāverit
pēierārit
peierāvisset
pēierāsset
1st pl.peierēmuspeierārēmuspeierāverīmus
pēierārīmus
peierāvissēmus
pēierāssēmus
2nd pl.peierētispeierārētispeierāverītis
pēierārītis
peierāvissētis
pēierāssētis
3rd pl.peierentpeierārentpeierāverint
pēierārint
peierāvissent
pēierāssent
passive indicative
passive indicative
formpresentimperfectfuture
1st sg.peierorpeierābarpeierābor
2nd sg.peierāris
peierāre
peierābāris
peierābāre
peierāberis
peierābere
3rd sg.peierāturpeierābāturpeierābitur
1st pl.peierāmurpeierābāmurpeierābimur
2nd pl.peierāminīpeierābāminīpeierābiminī
3rd pl.peieranturpeierābanturpeierābuntur
passive subjunctive
passive subjunctive
formpresentimperfect
1st sg.peiererpeierārer
2nd sg.peierēris
peierēre
peierārēris
peierārēre
3rd sg.peierēturpeierārētur
1st pl.peierēmurpeierārēmur
2nd pl.peierēminīpeierārēminī
3rd pl.peierenturpeierārentur
imperative
imperative
formactivepassive
pres. 2nd sg.peierāpeierāre
pres. 2nd pl.peierātepeierāminī
fut. 2nd sg.peierātōpeierātor
fut. 3rd sg.peierātōpeierātor
fut. 2nd pl.peierātōte—
fut. 3rd pl.peierantōpeierantor
infinitives & participles
infinitives & participles
formactivepassive
present infinitivepeierārepeierārī
perfect infinitivepeierāvisse
pēierāsse
peierātum esse
future infinitivepeierātūrum essepeierātum īrī
present participlepeierāns—
perfect participle—peierātus
peierāta, peierātā, peierātae, peierātam, peierātārum, peierātās, peierātī, peierātōrum, peierātōs
future participlepeierātūrus
peierātūra, peierātūrā, peierātūrae, peierātūram, peierātūrārum, peierātūrās, peierātūre, peierātūrī, peierātūrīs, peierātūrō, peierātūrōrum, peierātūrōs, peierātūrum
peierandus
peieranda, peierandā, peierandae, peierandam, peierandārum, peierandās, peierande, peierandīs, peierandōrum, peierandōs
gerundpeierandī, peierandō, peierandumsupinepeierātum, peierātū

Phrases from Meissner's Latin Phrase-Book

periurium facere; peierare
to commit perjury, perjure oneself.

pējĕro, or, in the orig. form, perjūro (Vulg. Lev. 19, 12; id. Matt. 5, 33), and per-jĕro (Plaut. Trin. 1, 1, 9; id. Truc. 1, 1, 9), āvi, ātum, 1, v. n. per-juro,
I. to swear falsely, to forswear or perjure one's self.
I. Lit.: non enim falsum jurare pejerare (al. perjurare) est, sed quod ex animi tui sententiā juraris, sicut verbis concipitur more nostro, id non facere perjurium est, Cic. Off. 3, 29, 108; cf.: illum verbis conceptis pejerasse, id. Clu. 48, 134; Plaut. As. 3, 2, 16; Quint. 5, 11, 13: 5, 6, 2; Cic. Rosc. Com. 16, 46: qui facile ac palam mentitur, pejerabit, Quint. 5, 10, 87: de aliquā re, Mart. 7, 20, 6: hic putat esse deos, et pejerat, Juv. 13, 91: per consulatum pejerat Vatinius, by the consulship, Cat. 52, 3.—With acc.: Stygias qui pejerat undas, by the waters of the Styx, Luc. 6, 749; cf.: alii in ipso Capitolio fallunt ac fulminantem perjurant Jovem, Plin. 2, 7, 5, § 21 Sillig N. cr.—Poet.: bel. lum pejerans, oath-breaking, treaty-breaking war, Stat. S. 4, 3, 4.—
(b). Poet. in part. perf. pass.: jus pejeratum, a false oath (analog. to jus jurandum), Hor. C. 2, 8, 1: et perjuratos in mea damna deos, offended by perjury, Ov. Am. 3, 11, 22.—
II. Transf., in gen., to lie (Plautin.): perge: optime hercle perjuras, Plaut. Poen. 2, 34: da pignus, ni nune perjures, id. ib. 5, 4, 72; id. Merc. 3, 1, 42.

Origins

From Proto-Indo-European *ped- (“to walk, fall, stumble”) and related to peior (“worse”), pēs (“foot”), so originally “to debase oneself”. Appears to have been conflated with, or reanalysed as, perjūrō, from per (“through”) + jūs (“law”).

Quick answers

What does peierō mean in Latin?
peierō, a verb, means “to swear a false oath; to perjure oneself”.
What are the principal parts of peierō?
peierō, peierāre, peierāvī, peierātum (first conjugation).
How do you pronounce peierō?
In classical Latin, [ˈpɛj.jɛ.roː]; in ecclesiastical (church) Latin, [ˈpɛː.je.ro].