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See also: décimo and decimò


Italian ordinal numbers
 <  9º 10º 11º  > 
    Cardinal : dieci
    Ordinal : decimo


Etymology 1[edit]

From Latin decimus (the tenth).[1] Cf. also the place name Diecimo.


decimo (feminine decima, masculine plural decimi, feminine plural decime)

  1. tenth


decimo m (plural decimi, feminine decima)

  1. tenth (the one in tenth position)


decimo m (plural decimi)

  1. tenth (fraction)
Related terms[edit]

Etymology 2[edit]

A regular conjugated form of decimare; compare the Latin decimō.



  1. first-person singular present indicative of decimare

Related terms[edit]

See also[edit]


  1. ^ “dieci” in: Alberto Nocentini, Alessandro Parenti, “l'Etimologico — Vocabolario della lingua italiana”, Le Monnier, 2010, →ISBN




From decimus (tenth) +‎ .[1]



decimō (present infinitive decimāre, perfect active decimāvī, supine decimātum); first conjugation

  1. I decimate (select every tenth person for punishment)
    • c. 100 CE – 110 CE, Tacitus, Histories 1.37:
      horror animum subit quotiens recordor feralem introitum et hanc solam Galbae victoriam, cum in oculis urbis decimari deditos iuberet, quos deprecantis in fidem acceperat.
      Horror overtakes me when I think back to that gruesome entry [in Rome], which was Galba's only victory, when before the eyes of the city he ordered the prisoners to be decimated, after he had accepted their pleas for surrender.
    • 121 CE, Suetonius, De vita Caesarum Vita divi Augusti.24:
      cohortes, si quae cessissent loco, decimatas hordeo pauit.
      Cohorts, if they hadn't stood their ground, he decimated and fed on barley.
    • 121 CE, Suetonius, De vita Caesarum Vita Caligulae.48:
      prius quam provincia decederet, consilium iniit nefandae atrocitatis legiones, quae post excessum Augusti seditionem olim moverant, contrucidandi, quod et patrem suum Germanicum ducem et se infantem tunc obsedissent, vixque a tam praecipiti cogitatione revocatus, inhiberi nullo modo potuit quin decimare velle perseveraret.
      Before leaving the province, he formed a plan of unspeakable cruelty: to slaughter the legions that had once mutinied on Augustus's passing, because they had held both his father Germanicus, their commander, and himself as an infant captive at the time – and though he was with great effort talked out of such a rash thought, he could in no way be dissuaded from persevering in wanting to decimate them.
  2. I pay tithes


   Conjugation of decimō (first conjugation)
indicative singular plural
first second third first second third
active present decimō decimās decimat decimāmus decimātis decimant
imperfect decimābam decimābās decimābat decimābāmus decimābātis decimābant
future decimābō decimābis decimābit decimābimus decimābitis decimābunt
perfect decimāvī decimāvistī decimāvit decimāvimus decimāvistis decimāvērunt, decimāvēre
pluperfect decimāveram decimāverās decimāverat decimāverāmus decimāverātis decimāverant
future perfect decimāverō decimāveris decimāverit decimāverimus decimāveritis decimāverint
passive present decimor decimāris, decimāre decimātur decimāmur decimāminī decimantur
imperfect decimābar decimābāris, decimābāre decimābātur decimābāmur decimābāminī decimābantur
future decimābor decimāberis, decimābere decimābitur decimābimur decimābiminī decimābuntur
perfect decimātus + present active indicative of sum
pluperfect decimātus + imperfect active indicative of sum
future perfect decimātus + future active indicative of sum
subjunctive singular plural
first second third first second third
active present decimem decimēs decimet decimēmus decimētis deciment
imperfect decimārem decimārēs decimāret decimārēmus decimārētis decimārent
perfect decimāverim decimāverīs decimāverit decimāverīmus decimāverītis decimāverint
pluperfect decimāvissem decimāvissēs decimāvisset decimāvissēmus decimāvissētis decimāvissent
passive present decimer decimēris, decimēre decimētur decimēmur decimēminī decimentur
imperfect decimārer decimārēris, decimārēre decimārētur decimārēmur decimārēminī decimārentur
perfect decimātus + present active subjunctive of sum
pluperfect decimātus + imperfect active subjunctive of sum
imperative singular plural
first second third first second third
active present decimā decimāte
future decimātō decimātō decimātōte decimantō
passive present decimāre decimāminī
future decimātor decimātor decimantor
non-finite forms active passive
present perfect future present perfect future
infinitives decimāre decimāvisse decimātūrum esse decimārī decimātum esse decimātum īrī
participles decimāns decimātūrus decimātus decimandus
verbal nouns gerund supine
genitive dative accusative ablative accusative ablative
decimandī decimandō decimandum decimandō decimātum decimātū



  • Catalan: delmar
  • English: decimate
  • French: décimer
  • Galician: decimar


  • decimo in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
  • decimo in Gaffiot, Félix (1934) Dictionnaire illustré Latin-Français, Hachette
  1. ^ “dieci” in: Alberto Nocentini, Alessandro Parenti, “l'Etimologico — Vocabolario della lingua italiana”, Le Monnier, 2010, →ISBN