What does sociofraudus mean in Latin?

sociofraudus, a noun, means “friend-deceiver”.

What is the genitive of sociofraudus?

The genitive singular is sociofraudī. sociofraudus is masculine, second declension.

noun · masculinesecond declension

sociofraudus m (genitive sociofraudī)

derogatoryhumorousmasculinefriend-deceiver
Ps. Sociofraude. Bal. Sunt mea istaec.Ps. Cheater of your friends! Bal. That's in my way.c. 191 BCE, Plautus, Pseudolus 1.3.lines 362

sŏcĭŏfraudus, i, m. socius-fraudo,

I. one that deceives his comrades, Plaut. Ps. 1, 3, 128.

Coined by Plautus, from socius (“friend”) + fraudō (“to cheat”).