What does cissos mean in Latin?

cissos, a noun, means “ivy (Hedera helix)”.

What is the genitive of cissos?

The genitive singular is cissī. cissos is masculine, second declension.

In classical Latin, [ˈkɪs.sɔs]; in ecclesiastical (church) Latin, [ˈt͡ʃis.sos].

noun · masculinesecond declension

cissos m (genitive cissī)

Classical[ˈkɪs.sɔs]Ecclesiastical[ˈt͡ʃis.sos]

cissŏs, i, f., = κισσός.

I. Ivy, Plin. 16, 34, 62, § 152.—

II. Cissos erythranos, an ivylike plant, Plin. 24, 10, 49, § 82.* † cissўbĭum, ĭi, n., = κισσύβιον, a cup of ivy-wood, Macr. S. 5, 21, 11.

Borrowed from Ancient Greek κισσός (kissós).