-ia

I. noun suffix Etymology: New Latin, from Latin and Greek, suffix forming feminine nouns 1. pathological condition Example: hysteria 2. genus of plants or animals Example: Fuchsia 3. territory; world; society Example: suburbia II. noun plural suffix Etymology: New Latin, from Latin (neuter plural of -ius, adjective ending) and Greek, neuter plural of -ios, adjective ending 1. higher taxon (as class or order) consisting of (such plants or animals) Example: Sauria 2. things derived from or relating to (something specified) Example: militaria III. plural of -ium

Merriam-Webster's Collegiate Dictionary