phrase

Iovem lapidem iūrāre

Classical[ˈjɔ.wẽː ˈɫa.pɪ.dẽː juːˈraː.rɛ]Ecclesiastical[ˈjɔː.vem ˈlaː.pi.dem juˈraː.re]

Meaning

to swear by the Jupiter Stone (Iuppiter Lapis), to make the most sacred of oaths
Quōmodo autem tibi placēbit Iovem lapidem iūrāre, cum sciās Iovem īrātum esse nēminī posse?Again, how will it please you to swear by the Jupiter Stone, when you know that Jupiter cannot be angry with anyone?62 – 43 BCE, Cicero, Epistulae ad familiares 7.12
“Iovem lapidem,” inquit “quod sānctissimum iūsiūrandum habitum est, parātus egō iūrāre sum Vergilium hoc numquam scrīpsisse, sed Hygīnum egō vērum dīcere arbitror.”He said, “I am ready to swear by the Jupiter Stone, which is considered the most sacred of oaths, that Virgil never wrote that, but (instead) I judge that Hyginus speaks the truth.”c. 125 – c. 180 CE, Aulus Gellius, Noctes Atticae 1.21

Quick answers

What does Iovem lapidem iūrāre mean in Latin?

Iovem lapidem iūrāre, a phrase, means “to swear by the Jupiter Stone (Iuppiter Lapis), to make the most sacred of oaths”.

How do you pronounce Iovem lapidem iūrāre?

In classical Latin, [ˈjɔ.wẽː ˈɫa.pɪ.dẽː juːˈraː.rɛ]; in ecclesiastical (church) Latin, [ˈjɔː.vem ˈlaː.pi.dem juˈraː.re].