IPA: /həˈlɒdʒənəs/
KK: /həˈlɒdʒənəs/
Referring to a chemical compound that includes a halogen element in its structure.
Sodium chloride is a halogenous compound because it contains chlorine, a halogen.
Halogenous → It is formed from "halo-" (from Greek "halos", meaning salt) and "-genous" (from Greek "genes", meaning born of or produced by). The word refers to something that is produced by or related to salt.
Think of 'salt' ('halo-') being 'produced by' ('-genous') — that's why halogenous relates to something that comes from salt.