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See also: décimo and decimò


Italian numbers (edit)
 ←  1  ←  9 10 11  →  20  → 
    Cardinal: dieci
    Ordinal: decimo
    Ordinal abbreviation: 10º
    Adverbial: dieci volte
    Multiplier: decuplo
    Collective: tutti e dieci
    Fractional: 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. (ordinal number) tenth


decimo m (plural decimi)

  1. (fractional number) tenth
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]


  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. to 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.
    • c. 69 CE – 122 CE, Suetonius, De vita Caesarum Vita divi Augusti 24:
      Cohortes, si quae cessissent loco, decimatas hordeo pavit.
      Cohorts, if they hadn't stood their ground, he decimated and fed on barley.
    • c. 69 CE – 122 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. to 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,
pluperfect decimāveram decimāverās decimāverat decimāverāmus decimāverātis decimāverant
future perfect decimāverō decimāveris decimāverit decimāverimus decimāveritis decimāverint
passive present decimor decimāris,
decimātur decimāmur decimāminī decimantur
imperfect decimābar decimābāris,
decimābātur decimābāmur decimābāminī decimābantur
future decimābor decimāberis,
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,
decimētur decimēmur decimēminī decimentur
imperfect decimārer decimārēris,
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



  • Inherited:
    • Catalan: delmar
    • Old Spanish: dezmar
    • Portuguese: dizimar
  • Borrowed:


  • 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