What does peripsēma mean in Latin?

peripsēma, a noun, means “refuse, filth, offscouring”.

What is the genitive of peripsēma?

The genitive singular is peripsēmatis. peripsēma is neuter, third declension.

noun · neuterthird declension

peripsēma n (genitive peripsēmatis)

declension
form	singular	plural
nominative	peripsēma peripsīma	peripsēmata peripsīmata
genitive	peripsēmatis peripsīmatis	peripsēmatum peripsīmatum
dative	peripsēmatī peripsīmatī	peripsēmatibus peripsīmatibus
accusative	peripsēma peripsīma	peripsēmata peripsīmata
ablative	peripsēmate peripsīmate	peripsēmatibus peripsīmatibus
vocative	peripsēma peripsīma	peripsēmata peripsīmata

pĕripsēma, ătis, n., = περίψημα, that which comes off a thing in cleaning it,

I. offscouring, refuse, filth (post-class.), Tert. Pudic. 14; Vulg. 1 Cor. 4, 13.

From Ancient Greek περίψημα (perípsēma), from περιψάω (peripsáō), from περί (perí) and ψάω (psáō).