frater consanguineus (fray-t[schwa]r kon-sang-gwin-ee-[schwa]s). A brother or half-brother having the same father.
frater germanus (fray-t[schwa]r j[schwa]r-may-n[schwa]s). A brother having both parents in common.
frater nutricius (fray-t[schwa]r n[y]oo-trish-ee-[schwa]s). A foster brother who was suckled by the same wet nurse.
frater uterinus (fray-t[schwa]r yoo-t[schwa]-rI-n[schwa]s). A brother or half-brother having the same mother.