opinor

Latin

Etymology

From *opīnus (in inopīnus, necopīnus), of unclear origin.

The word is traditionally derived from Proto-Indo-European *op- (“to prefer, choose”), whence optō. However, Schrijver argues that the semantic link between "to choose" and "to believe" is tenuous, leaving the connection uncertain.

Vine notes that an alternate spelling of the word found in a third-century Praenestine inscription, opeinor, suggests that the Proto-Italic form contained an *-ei- and not an *-ī-, rendering formal analysis even more difficult.[1]

Pronunciation

Verb

opīnor (present infinitive opīnārī, perfect active opīnātus sum); first conjugation, deponent

  1. to suppose, imagine, deem, think, judge, opine
    Synonyms: puto, cogito, sentio, existimo, arbitror, credo, iudico, censeo, considero

Conjugation
   Conjugation of opīnor (first conjugation, deponent)
indicative singular plural
first second third first second third
active present opīnor opīnāris,
opīnāre		 opīnātur opīnāmur opīnāminī opīnantur
imperfect opīnābar opīnābāris,
opīnābāre		 opīnābātur opīnābāmur opīnābāminī opīnābantur
future opīnābor opīnāberis,
opīnābere		 opīnābitur opīnābimur opīnābiminī opīnābuntur
perfect opīnātus + present active indicative of sum
pluperfect opīnātus + imperfect active indicative of sum
future perfect opīnātus + future active indicative of sum
subjunctive singular plural
first second third first second third
active present opīner opīnēris,
opīnēre		 opīnētur opīnēmur opīnēminī opīnentur
imperfect opīnārer opīnārēris,
opīnārēre		 opīnārētur opīnārēmur opīnārēminī opīnārentur
perfect opīnātus + present active subjunctive of sum
pluperfect opīnātus + imperfect active subjunctive of sum
imperative singular plural
first second third first second third
active present — opīnāre — — opīnāminī —
future — opīnātor opīnātor — — opīnantor
non-finite forms active passive
present perfect future present perfect future
infinitives opīnārī opīnātum esse opīnātūrum esse — — —
participles opīnāns opīnātus opīnātūrus — — opīnandus
verbal nouns gerund supine
genitive dative accusative ablative accusative ablative
opīnandī opīnandō opīnandum opīnandō opīnātum opīnātū

Derived terms

Descendants
  • Catalan: opinar
  • English: opine
  • French: opiner
  • Galician: opinar
  • Italian: opinare
  • Portuguese: opinar
  • Romanian: opina
  • Spanish: opinar

References
  • “opinor”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
  • “opinor”, in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
  • opinor in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.
  • “opine”, in The Century Dictionary […], New York, N.Y.: The Century Co., 1911, →OCLC.
  • Julius Pokorny (1959), Indogermanisches etymologisches Wörterbuch, in 3 vols, Bern, München: Francke Verlag
  1. De Vaan, Michiel (2008) Etymological Dictionary of Latin and the other Italic Languages (Leiden Indo-European Etymological Dictionary Series; 7), Leiden, Boston: Brill, →ISBN, page 430
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