Ar·chi-  A prefix signifying chief, arch; as, architect, archiepiscopal. In Biol. and Anat. it usually means primitive, original, ancestral; as, archipterygium, the primitive fin or wing.
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  Archi
     a city on the boundary of Ephraim and Benjamin (Josh. 16:2),
     between Bethel and Beth-horon the nether.