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arcane
arcanum
arccosec
arccot
-arch
Arch.
arch (1)
arch (2)
arch-
arch.
arch bridge
archae-
archaea
Archaean
archaebacteria
archaeo-
archaeoastronomy
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arch-
arch-


prefix 
Definition:
 
1. chief, most important
archrival
2. extreme
archconservative
[Via Old French and Latin arche< Greek arkhi- "first, chief" (see archi-)]
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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