LATIN DICTIONARYLexicon Latīnum
proper noun · masculinethird declension

Sesōstris

Sesōstris m sg (genitive Sesōstris)
Classical[sɛˈsoːs.trɪs]Ecclesiastical[seˈs̬ɔs.tris]

Meaning

  1. A king of Egypt

Declension

declension
formsingularplural
nominativeSesōstris—
genitiveSesōstris—
dativeSesōstrī—
accusativeSesōstrem—
ablativeSesōstre—
vocativeSesōstris—

Sĕsostris (lengthened Sĕsŏostris, Paul. Nol. ap. Aus. Ep. 19, 21), is, or Sĕsō-sis, ĭdis, m., = Σἐσωστρις,
I. a celebrated king of Egypt, Luc. 10, 276.—Abl. Sesostre, Plin. 33, 3, 15, § 52.—Gen. Sesosidis, Plin. 36, 11, 15, § 74 (al. Sesothis) Sillig N. cr.—Abl. Sesoside, Tac. A. 6, 28 Orell. N. cr.

Origins

Borrowed from Ancient Greek Σέσωστρις (Sésōstris).

In the Academy Smith's classical dictionaries

Quick answers

What does Sesōstris mean in Latin?
Sesōstris, a proper noun, means “A king of Egypt”.
What is the genitive of Sesōstris?
The genitive singular is Sesōstris. Sesōstris is masculine, third declension.
How do you pronounce Sesōstris?
In classical Latin, [sɛˈsoːs.trɪs]; in ecclesiastical (church) Latin, [seˈs̬ɔs.tris].