What does compōtor mean in Latin?

compōtor, a noun, means “drinking companion”.

What is the genitive of compōtor?

The genitive singular is compōtōris. compōtor is masculine, third declension.

Proto-Indo-European *ḱe? → Proto-Indo-European *ḱóm → Proto-Italic *kom → Proto-Italic *kom- → Latin compōtor.

declension
form	singular	plural
nominative	compōtor compōtrīx	compōtōrēs compōtrīcēs
genitive	compōtōris compōtrīcis	compōtōrum compōtrīcum
dative	compōtōrī compōtrīcī	compōtōribus compōtrīcibus
accusative	compōtōrem compōtrīcem	compōtōrēs compōtrīcēs
ablative	compōtōre compōtrīce	compōtōribus compōtrīcibus
vocative	compōtor compōtrīx	compōtōrēs compōtrīcēs

com-pōtor, ōris, m.,

I. a drinking-companion, pot-companion, Cic. Phil. 2, 17, 42; 5, 8, 22.

Latin pōtor Latin compōtor From con- + pōtor.