na- (pref)
91circum — pref. around, round about …
92co — pref. together, as partners …
93cosmo — pref. universe, world …
94cyber — pref. of or pertaining to computers and computer networks (such as the Internet); offering access to a computer network (i.e. cybercafe); carried out via computers or computer networks …
95de — pref. counter; reduce; remove; reverse; derive prep. from, of (component in French, Spanish and Portuguese names) …
96deca — pref. ten …
97deci — pref. tenth …
98dek — pref. ten …
99dendr — pref. having a tree like shape …
100dendri — pref. tree …