na- (pref)
81avant — pref. before, pre …
82az — pref. used to form the names of chemical compounds containing nitrogen or the azo group (variation of azo ) …
83azo — pref. contains nitrogen; contains azo radicals (Chemistry) …
84bi — pref. two, twice …
85bio — pref. life (Greek) …
86brevi — pref. short (Latin) …
87bromo — pref. of bromine …
88calli — pref. beautiful cal·lus || kælÉ™s n. hardened area of skin; bunch of undifferentiated plant cells that are capable to regenerate a complete plant in some species (Biology) v. be covered with callouses, be covered with patches of hardened skin …
89carbo — pref. carbon …
90cardio — pref. of the heart, pertaining to the heart …