Italian

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Etymology 1

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Borrowed from Latin -eus.

Pronunciation

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  • IPA(key): /e.o/ (stress falls on the preceding syllable)
  • Hyphenation: -e‧o

Suffix

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-eo (adjective-forming suffix, feminine -ea, masculine plural -ei, feminine plural -ee)

  1. used to form adjectives referring to the qualities of the root noun; -en, -eous, -ean
    1. used to form adjectives from materials or substances, indicating material composition:
      ferro (iron) + ‎-eo → ‎ferreo (made of iron)
      argento (silver) + ‎-eo → ‎argenteo (made of silver)
      acqua (water) + ‎-eo → ‎acqueo (made of water, watery)
    2. used to form relational adjectives from proper nouns:
      Cesare (Caesar) + ‎-eo → ‎cesareo (Caesarean, of or pertaining to Julius Caesar)
      Medici + ‎-eo → ‎mediceo (of or pertaining to the Medici family)
Usage notes
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  • Some adjectives in -eo are borrowed directly from Latin and exhibit fossilized characteristics which are otherwise lost in the root noun:
    • corpo (body)corporeo (bodily, corporeal) (cfr. Latin corpor-, oblique stem of corpus)
    • legno (wood)ligneo (wooden, made from wood) (cfr. Latin lignum)
    • oro (gold)aureo (golden, made of gold) (cfr. Latin aurum)
    • Ercole (Hercules)erculeo (Herculean, pertaining to Hercules) (cfr. Latin Herculēs)

Etymology 2

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Borrowed from Latin -aeus, from Ancient Greek -αῖος (-aîos).

Pronunciation

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  • IPA(key): /ˈɛ.o/
  • Rhymes: -ɛo
  • Hyphenation: -è‧o

Suffix

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-eo (adjective-forming suffix, feminine -ea, masculine plural -ei, feminine plural -ee) -eo m (noun-forming suffix, plural -ei, feminine -ea)

  1. used to form adjectives and nouns expressing relation to the root noun; -an, -ean
    1. forming ethnonyms from place names:
      Etna + ‎-eo → ‎etneo (of or pertaining to mount Etna; person from or inhabitant of the Etna region)
      Ragusa (city in Croatia) + ‎-eo → ‎raguseo (of or pertaining to the city of Ragusa; person from or inhabitant of Ragusa)
    2. forming relational adjectives from proper nouns:
      Euclide (Euclid) + ‎-eo → ‎euclideo (Euclidean, pertaining to Euclid)
      Augusto (Augustus) + ‎-eo → ‎augusteo (Augustan, pertaining to emperor Augustus or his time)
    3. forming relational adjectives from body parts:
      carotide (carotid) + ‎-eo → ‎carotideo (pertaining to a carotid)
      faringe (pharynx) + ‎-eo → ‎faringeo (pharyngeal, pertaining to the pharynx)

Derived terms

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Latin

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Pronunciation

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Etymology 1

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    From Proto-Italic *-ēō, from earlier *-ējō, from verbs with Proto-Indo-European *-éh₁yeti (stative suffix) in which the first person singular always ended in *-éh₁yoh₂.

    Suffix

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    -eō (present infinitive -ēre); second conjugation, no perfect or supine stems

    1. Forms stative verbs from adjectives.
      clārus (clear) + ‎-eo → ‎clār (to be clear)
      frīgus (cold) + ‎-eo → ‎frīg (to be cold)
    Conjugation
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    1At least one use of the Old Latin "sigmatic future" and "sigmatic aorist" tenses is attested, which are used by Old Latin writers; most notably Plautus and Terence. The sigmatic future is generally ascribed a future or future perfect meaning, while the sigmatic aorist expresses a possible desire ("might want to"). It is also attested as having a rare sigmatic future passive indicative form ("will have been"), which is not attested in the plural for any verb.

    Derived terms
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    Etymology 2

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    From Proto-Italic *-eō, from causative/frequentative verbs with Proto-Indo-European *-éyeti (causative suffix) in which the first person singular ended in *-éyoh₂.

    Suffix

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    -eō (present infinitive -ēre); second conjugation, no perfect or supine stems

    1. (no longer productive) Forms causative verbs from primary (third conjugation and some fourth conjugation) verbs.
    Conjugation
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    1At least one use of the Old Latin "sigmatic future" and "sigmatic aorist" tenses is attested, which are used by Old Latin writers; most notably Plautus and Terence. The sigmatic future is generally ascribed a future or future perfect meaning, while the sigmatic aorist expresses a possible desire ("might want to"). It is also attested as having a rare sigmatic future passive indicative form ("will have been"), which is not attested in the plural for any verb.

    Etymology 3

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    See the etymology of the corresponding lemma form.

    Suffix

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    -eō

    1. dative/ablative masculine/neuter singular of -eus

    References

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    Spanish

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    Etymology 1

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    From Latin -eus.

    Suffix

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    -eo (adjective-forming suffix, feminine -ea, masculine plural -eos, feminine plural -eas)

    1. -eous; forms adjectives meaning resembling or having characteristics of the related term
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    Etymology 2

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    Suffix

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    -eo m (noun-forming suffix, plural -eos)

    1. forms nouns from verbs suffixed with -ear, meaning 'action and effect'
    Derived terms
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    Further reading

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