LATIN DICTIONARYLexicon Latīnum
noun · neutersecond declension

plōstrum

plōstrum n (genitive plōstrī)
Classical[ˈpɫoːs.trũː]Ecclesiastical[ˈplɔs.trum]

Meaning

  1. an open wagon or cart for hauling loads.
    Et tamen nonnulla eius facetissima extant, in quibus et haec. Mestrium Florum consularem, admonitus ab eo “plaustra” potius quam “plostra” dicenda, postero die “Flaurum” salutavit.c. 69 CE – 122 CE, Suetonius, Divus Vespasianus 22
  2. the Big Dipper, Charles' Wain, the Plough.

Declension

declension
formsingularplural
nominativeplōstrumplōstra
genitiveplōstrīplōstrōrum
dativeplōstrōplōstrīs
accusativeplōstrumplōstra
ablativeplōstrōplōstrīs
vocativeplōstrumplōstra

plostrum, i, v. plaustrum.

Origins

Uncertain; possibly from Latin plautus~plōtus (“flat, broad”), thus "flatwagon", or Latin plaudere~plōdere (“clap, clatter”), thus "clatterer", both from Proto-Indo-European *pleh₂- and containing *-trom (“tool-suffix”) (Latin -trum). V. Bertoldi considers it a substrate word of various forms, among which ploxenum (“wagon-box”). C.f also Latin plaumorātum (plauromātum?) (“a type of plough”) and Proto-Germanic *plōgaz (“plough”) of likewise uncertain etymology.

Quick answers

What does plōstrum mean in Latin?
plōstrum, a noun, means “an open wagon or cart for hauling loads.; the Big Dipper, Charles' Wain, the Plough.”.
What is the genitive of plōstrum?
The genitive singular is plōstrī. plōstrum is neuter, second declension.
How do you pronounce plōstrum?
In classical Latin, [ˈpɫoːs.trũː]; in ecclesiastical (church) Latin, [ˈplɔs.trum].