LATIN DICTIONARYLexicon Latīnum
noun · masculinesecond declension

praefectus

praefectus m (genitive praefectī, feminine praefectissa)
Classical[prae̯ˈfɛk.tʊs]Ecclesiastical[preˈfɛk.tus]

Meaning

  1. masculineofficer, prefect, superintendent, official, commander, captain
    praefectus praetoriicommander of the praetorian guard; praetorian prefect
    praefectus Aegyptithe governor of Egypt

Latīnē defined in Latin in our graded readers

quī reī praepositus est
commander, prefect
praefectus -ī (m) — in De Bello Gallico II, ch. 10
rēctor prōvinciae
praefectus -ī (m) — in Epistulae, ch. 19

Declension

declension
formsingularplural
nominativepraefectuspraefectī
genitivepraefectīpraefectōrum
dativepraefectōpraefectīs
accusativepraefectumpraefectōs
ablativepraefectōpraefectīs
vocativepraefectepraefectī

prae-fectus (praefactus), a, um, Part. [facio],
I. done beforehand (postclass.), Cael. Aur. Acut. 3, 17, 174; id. Tard. 2, 14, 218; 5, 4, 71.
praefectus, a, um, Part., from praeficio.
praefectus, i, m., v. praeficio
I. fin.

Origins

Perfect passive participle of praeficiō.

In English words that came into English from praefectus

  • prefectpraefectus
  • prefecturepraefectūra

In the Academy Smith's classical dictionaries

Quick answers

What does praefectus mean in Latin?
praefectus, a noun, means “officer, prefect, superintendent, official, commander, captain”.
What is the genitive of praefectus?
The genitive singular is praefectī. praefectus is masculine, second declension.
How do you pronounce praefectus?
In classical Latin, [prae̯ˈfɛk.tʊs]; in ecclesiastical (church) Latin, [preˈfɛk.tus].