Lewis & Short

1. lātro, āvi, ātum, 1, v. n. and a. [cf. Gr. λοιδορέω and λατράζειν = βαρβαρίζειν, Hesych.], to bark (cf. baubor).

  1. I. Lit.: si canes latrent, Cic. Rosc. Am. 20, 56; Lucr. 5, 1066: ne latret canis, Hor. S. 1, 2, 128: quasi feta canes sine dentibus latrat, Enn. ap. Varr. L. L. 7, § 32 Müll. (Ann. v. 518 Vahl.): canis timidus vehementius latrat quam mordet, Curt. 7, 4, 13: canino rictu, Juv. 10, 272.
    Impers. pass.: scit cui latretur cum solus obambulet ipse, Ov. Tr. 2, 459.
          1. (β) Act. for allatrare, to bark at, bay: senem adulterum Latrent Suburanae canes, Hor. Epod. 5, 57: cervinam pellem, id. Ep. 1, 2, 66: nubila, Stat. Th. 1, 551.
            Also in pass.: latrari a canibus, Plin. 25, 10, 78, § 126.
          2. (γ) Part. pres. as subst.: lātrans, antis, m., a barker, i. e. a dog (poet.): inmeriti fatum latrantis, Ov. M. 8, 412; plur., id. ib. 8, 344.
    1. B. Transf.
      1. 1. To resound, roar, of water (poet.): latrantes undae, Sil. 5, 396: (amnis) Alpibus ortus fertur latrantibus undis, id. 3, 470; Stat. Ach. 1, 451.
      2. 2. In speaking, to rant, roar, bluster: latrant jam quidam oratores, non loquuntur, Cic. Brut. 15, 58: rumperis et latras, Hor. S. 1, 3, 136.
          1. (β) Act., to bark at: si quis Obprobriis dignum latraverit, Hor. S. 2, 1, 85.
  2. II. Trop., to bark at, rage, etc.
    1. A. In gen.: multa ab animalium vocibus tralata in homines, partim quae sunt aperta, partim obscura. Perspicua, ut Ennii: Animus cum pectore latrat, Varr. L. L. 7, § 103 Müll. (cf. Ann. v. 570 Vahl.): admoto latrant praecordia tactu, rage, Stat. S. 2, 1, 13: curae latrantes, Petr. 119.
          1. (β) Act.: magnas latrantia pectora curas, Stat. Th. 2, 338.
    2. B. In partic.
      1. 1. To demand vehemently: latrare Ennius pro poscere posuit, Paul. ex Fest. 121 Müll.; cf. Enn. l. l.: cum sale panis Latrantem stomachum bene leniet, Hor. S. 2, 2, 17: nil aliud sibi naturam latrare, nisi ut, etc., Lucr. 2, 17.
      2. 2. Opening the mouth wide, pronounced with a wide mouth: hanc scripsit Latine Plautus cum latranti nomine, Plaut. Cas. prol. 34.

2. lā̆tro, ōnis, m. [Gr. λάτρις, root λα-, λαϝ-, in λάω, λεία; cf. lucrum],

  1. I. a hired servant, hireling, mercenary, satellite, bodyguard, etc. (only ante-class.): haec effatus ibi, latrones dicta facessunt, Enn. ap. Non. 306, 23 (Ann. v. 60 Vahl.).
    Of mercenary soldiers: latrones, quos conduxi, Plaut. Mil. 4, 1, 3: nam hic latro in Sparta fuit, id. Poen. 3, 3, 50: latronem suam qui auro vitam venditat, id. Bacch. 1, 1, 20 Fleck.; cf.: fortunas suas coepere latrones Inter se memorare, Enn. ap. Non. 134, 29 (Ann. v. 528 Vahl.); cf. Varr. L. L. 7, p. 141 Müll., and the passage from Paul. ex Fest. infra.
  2. II. Transf.
    1. A. A freebooter, highwayman, robber, bandit, irregular soldier, brigand (opp. justi hostes). Liv. 40, 27, 10: latrones eos antiqui dicebant, qui conducti militabant. ἀπὸ τῆς λατρείας. At nunc viarum obsessores dicuntur, Paul. ex Fest. p. 118 Müll.: hostes hi sunt, qui nobis, aut quibus nos publice bellum decrevimus: ceteri latrones aut praedones sunt, Dig. 50, 16, 118: vos latrones et mendicos homines magni penditis? Plaut. Stich. 1, 2, 75: collecti ex praedonibus latronibusque Syriae, Caes. B. C. 3, 110; 3, 109 fin.; id. B. G. 3, 17: erat ei vivendum latronum ritu, ut tantum haberet, quantum rapere potuisset, Cic. Phil. 2, 25, 62: non semper viator a latrone, non numquam etiam latro a viatore occiditur, Cic. Mil. 21, 55; cf.: cantabit vacuus coram latrone viator, Juv. 10, 22; 13, 145: ne quis fur esset, neu latro, Hor. S. 1, 3, 106: quin etiam leges latronum esse dicuntur, etc., Cic. Off. 2, 11, 40: quaestio latronum, Paul. Sent. 5, 16, 13: qui latronem caedem sibi inferentem, occiderit, id. ib. 5, 23, 8.
      Of an assassin, Val. Max. 5, 9, 4.
      Poet. of a hunter, Verg. A. 12, 7.
      Of a wolf, Phaedr. 1, 1, 4.
    2. B. For latrunculus, a chessman, a piece in the game of draughts or chess which represents a soldier; a man, pawn (poet.): latronum proelia, Ov. A. A. 3, 357: ludere bella latronum, Mart. 14, 20, 1; cf. vitreo latrone, id. 7, 72, 8.

3. Lā̆tro, ōnis, m.,

  1. I. a Roman surname. So M. Porcius Latro, a famous orator from Spain, a friend of the elder Seneca, Sen. Contr. 1 praef.; Quint. 10, 5, 18; 9, 2, 91; Plin. 20, 14, 57, § 160.
    Hence,
  2. II. Lătrō-nĭānus, a, um, adj., of or belonging to Latro, Latronian: color, Sen. Contr. 1, 7, 16; 1 praef. § 13.