fa·nat·ic 
(fə-nătĭk)
(fə-nătĭk)n.
A person marked or motivated by an extreme, unreasoning enthusiasm, as for a cause.
adj.
Fanatical.
[Latin fānāticus, inspired by orgiastic rites, pertaining to a temple, from fānum, temple; see dhēs- in the Appendix of Indo-European roots.]
- autolysis
- autolytic
- autolyze
- automaker
- automat
- automata
- automatable
- automate
- automated teller machine
- automatic
- automatically
- automaticity
- automatic pilot
- automatic teller machine
- automatic writing
- automation
- automatism
- automatist
- automative
- automatization
- automatize
- automaton
- automatous
- automobile
- automobilist