-archy
Merriam-Webster's Collegiate Dictionary:
-arch
I.
noun
combining form
Etymology:
Middle English
-arche,
from Anglo-French `; Late Latin `; Latin; Anglo-French
-arche,
from Late Latin
-archa,
from Latin
-arches, -archus,
from Greek
-archēs, -archos,
from
archein
ruler
;
leader
Example:
matri
arch
II.
adjective
combining form
Etymology:
probably from German, from Greek
archē
beginning
having (such) a point or (so many) points of origin
Example:
end
arch