What does Sychaeus mean in Latin?

Sychaeus, a proper noun, means “Sychaeus (Husband of Dido, legendary foundress and queen of Carthage)”.

What is the genitive of Sychaeus?

The genitive singular is Sychaeī. Sychaeus is masculine, second declension.

proper noun · masculinesecond declension

Sychaeus m sg (genitive Sychaeī)

masculinesingularSychaeus (Husband of Dido, legendary foundress and queen of Carthage)

Sȳ^chaeus (Sych-, Verg. A. 1, 343; also Sĭchaeus), i, m.,

I. Sychæus, husband of Dido, Verg. A. 1, 343; 1, 720; 4, 20; 4, 502; 4, 632; 6, 474; Ov. H. 7, 97 sq.—Hence, Sў-chaeus, a, um, adj., of Sychæus, Verg. A. 4, 552.

Borrowed from Ancient Greek Συγχαῖος/Συχαῖος (Sunkhaîos/Sukhaîos).