LATIN DICTIONARYLexicon Latīnum
proper noun · masculinesecond declension

Plautius

Plautius m sg (genitive Plautiī or Plautī)
Classical[ˈpɫau̯.ti.ʊs]Ecclesiastical[ˈplau̯t.t͡si.us]

Meaning

  1. masculinesingulara nomen (nomen gentile), a Roman family name
    Marcus Plautius Silvanus

Declension

declension
formsingularplural
nominativePlautius—
genitivePlautiī
Plautī
—
dativePlautiō—
accusativePlautium—
ablativePlautiō—
vocativePlautī—

Plautĭus (Plōt-), i, m.,
I. name of a Roman gens.
1. M. Plautius Hypsaeus, a consul A. U. C. 630, Cic. de Or. 1, 36, 166.—
2. M. Plautius Silvanus, a tribune of the people A. U. C. 666, Ascon. Cic. Corn. p. 79.—
3. L. Plotius Gallus, a rhetorician in the time of Marius, Suet. Rhet. 2.—
4. L. Plotius, a poet who celebrated the Mithridatic war, Cic. Arch. 9, 20.—Hence,
A. Plautĭus (Plōt-), a, um, adj., of or pertaining to a Plautius (Plotius), Plautian, Plotian: Plautia lex, of the tribune of the people M. Plautius Sylvanus, Ascon. Cic. Corn. p. 79: ipse (Catilina) lege Plautiā interrogatus est, Sall. C. 31, 4; Cic. Mil. 13, 35: Plautia rogatio, Gell. 13, 3, 5: Plotia rogatio, Suet. Caes. 5.—
B. Plautĭānus (Plōt-), a, um, adj., Plautian: fabulae, of the comic poet Plautius, Gell. 3, 3: de bonis Plotianis, belonging to a certain Plotius, Cic. Fam. 13, 8, 2.

Origins

From Plautus (agnomen and cognomen) + -ius (“-y”, adjective-forming suffix) or directly from plautus (“flat-footed; flap-eared”) + -ius. Compare Laevus & Laevius and Plancus & Plancius.

In the Academy Smith's classical dictionaries

Quick answers

What does Plautius mean in Latin?
Plautius, a proper noun, means “a nomen (nomen gentile), a Roman family name”.
What is the genitive of Plautius?
The genitive singular is Plautiī. Plautius is masculine, second declension.
How do you pronounce Plautius?
In classical Latin, [ˈpɫau̯.ti.ʊs]; in ecclesiastical (church) Latin, [ˈplau̯t.t͡si.us].