A follower of the philosopher Diogenes was called this, from the Greek for "doglike"
The cynics 
called for a rejection of the conventional desires for power,... [DOC] [TLE] Geometry.Net - Philosophers: Diogenes Of Sinope [PAR] Cynicism Greek ), in its original form, refers to the beliefs of an ancient school of 
Greek philosophers known as the Cynics ( Greek Latin Cynici ).