Definition of "arch-" in English

prefix

1. A title in a hierarchy which indicates a higher degree of rank than its root word.

   • archeparch
   • archmarshal
   • archdiocese

2. Leading, foremost, primary, or principal.

   • archantagonist
   • archmodernist
   • archcompetitor

3. (augmentative) Intensely, extremely, or exceptionally.

   • archfool
   • archracist
   • archnationalist

4. Powerful, potent.

   • archmage
   • archvillain
   • archwife

5. First; original.

   • archangel
   • archdevil
   • archsin