LATIN DICTIONARYLexicon Latīnum
adjectivefirst/second-declension adjective

operōsus

operōsus (feminine operōsa, neuter operōsum, comparative operōsior, superlative operōsissimus)
Classical[ɔ.pɛˈroː.sʊs]Ecclesiastical[o.peˈrɔː.s̬us]

Meaning

  1. adjectivepainstaking
  2. adjectiveactive, busy, industrious
  3. adjectivelaborious

Latīnē defined in Latin in our graded readers

Declension

singular
formmasculinefeminineneuter
nominativeoperōsusoperōsaoperōsum
genitiveoperōsīoperōsaeoperōsī
dativeoperōsōoperōsaeoperōsō
accusativeoperōsumoperōsamoperōsum
ablativeoperōsōoperōsāoperōsō
vocativeoperōseoperōsaoperōsum
plural
formmasculinefeminineneuter
nominativeoperōsīoperōsaeoperōsa
genitiveoperōsōrumoperōsārumoperōsōrum
dativeoperōsīsoperōsīsoperōsīs
accusativeoperōsōsoperōsāsoperōsa
ablativeoperōsīsoperōsīsoperōsīs
vocativeoperōsīoperōsaeoperōsa

ŏpĕrōsus, a, um, adj. opera.
I. Taking great pains, painstaking, active, busy, industrious, laborious (class.; syn.: laboriosus, industrius): senectus, opp. to languida atque iners, Cic. Sen. 8, 26: colonus, Ov. Nuce, 57: cultibus ambae, id. Am. 2, 10, 5. —Poet. with Gr. acc.: Cynthia non operosa comas (al. comis), Prop. 5, 8, 52.—Poet. with gen.: vates operose dierum, in regard to, Ov. F. 1, 101.—Sup.: Syria in hortis operosissima, exceedingly industrious in gardening, Plin. 20, 5, 16, § 33.—
B. Transf., of a medicine, active, efficacious, powerful, drastic (poet.): herbae, Ov. M. 14, 22.—
II. That costs much trouble, troublesome, toilsome, laborious, difficult, elaborate (syn. difficilis): labor operosus et molestus, Cic. N. D. 2, 23, 59: artes, handicrafts, id. Off. 2, 5, 17: opus, id. Q. Fr. 2, 14, 1: res, Liv. 4, 8: templa, costly, sumptuous, Ov. M. 15, 667: moles mundi, the artfully constructed fabric of the universe, id. ib. 1, 258: castaneae cibo, hard to digest, Plin. 15, 23, 25, § 93: carmina, elaborate, Hor. C. 4, 2, 31.—Comp.: ne quis sepulcrum faceret operosius, quam quod decem homines effecerint triduo, Cic. Leg. 2, 26, 64: divitiae operosiores, Hor. C. 3, 1, 48; 3, 12, 5.—Hence, adv.: ŏpĕrōsē.
A. Lit., with great labor or pains, laboriously, carefully (class.): nec flat operose, Cic. Or. 44, 149: vina condita, Ov F. 5, 269.—Comp.: dicemus operosius, more precisely, Plin. 18, 26, 65, § 238.—
B. Transf., exactly, accurately (post-Aug.): dicemus mox paulo operosius, Plin. 18, 26, 65, § 238.

Origins

  1. Proto-Indo-European*h₃ep-
  2. Proto-Indo-European*h₃épos
  3. Proto-Italic*opos
  4. Latinoperōsus

Latin opera Latin -ōsus Latin operōsus From opera + -ōsus.

Descendants
  • Englishoperous
  • Englishoperose
  • Italianoperoso
  • Portugueseoperoso
  • Piedmonteseoperos

Quick answers

What does operōsus mean in Latin?
operōsus, a adjective, means “painstaking; active, busy, industrious; laborious”.
How do you pronounce operōsus?
In classical Latin, [ɔ.pɛˈroː.sʊs]; in ecclesiastical (church) Latin, [o.peˈrɔː.s̬us].
Where does operōsus come from?
Proto-Indo-European *h₃ep- → Proto-Indo-European *h₃épos → Proto-Italic *opos → Latin operōsus.