LATIN DICTIONARYLexicon Latīnum
proper noun · masculinesecond declension

Iācōbus

Iācōbus m (genitive Iācōbī)
Classical[jaːˈkoː.bʊs]Ecclesiastical[jaˈkɔː.bus]

Meaning

  1. a male given name, equivalent to English Jacob or James
    Iacobus Quintus, Rex ScotorumJames V, King of Scots
    Iacobus Dei Gratia Angliæ Primus & Scotiæ Sextus RexJames, King by the Grace of God, the First of England & the Sixth of Scotland

Declension

declension
formsingularplural
nominativeIācōbusIācōbī
genitiveIācōbī
Iācōpī
Iācōbōrum
dativeIācōbō
Iācōpō
Iācōbīs
accusativeIācōbum
Iācōpum
Iācōbōs
ablativeIācōbō
Iācōpō
Iācōbīs
vocativeIācōbe
Iācōpe
Iācōbī

Origins

From Ancient Greek Ἰάκωβος (Iákōbos), from Biblical Hebrew יַעֲקֹב (yaʿăqōḇ, literally “May He Heel”), from the third-person singular masculine imperfective form of the Semitic verb "to heel" (with various meanings), in turn from עָקֵב (ʿāqēḇ, “heel of the foot”).

Elsewhere
  • CatalanJacob
  • FrenchJacob
  • GermanJakobus
  • ItalianJacopo
  • ItalianGiacobbe
  • ItalianGiacofrom Italian Giacobbe
  • ItalianGiacopo
  • EnglishJacobfrom Middle English Iacob
  • EnglishJakobfrom Middle English Iacob
  • EnglishJaycobfrom Middle English Iacob
Old Occitan
  • CatalanJaume
  • OccitanJacme
Old Navarro-Aragonese
  • AragoneseChaime
Old Leonese
  • AsturianXaime
⇒ Rhaeto-Romance
  • FriulianJacum
Italo-Dalmatian
  • SicilianSan Jàbbucu

In English words that came into English from Iācōbus

  • JacobiteIācōbus

In the Academy Smith's classical dictionaries

Quick answers

What does Iācōbus mean in Latin?
Iācōbus, a proper noun, means “a male given name, equivalent to English Jacob or James”.
What is the genitive of Iācōbus?
The genitive singular is Iācōbī. Iācōbus is masculine, second declension.
How do you pronounce Iācōbus?
In classical Latin, [jaːˈkoː.bʊs]; in ecclesiastical (church) Latin, [jaˈkɔː.bus].