arch-(redirected from archo-)
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1. Chief; highest; most important: archenemy.
2. Extreme or most characteristic of its kind: archconservative.
[Middle English arche-, from Old English ærce- and from Old French arche-, both from Latin archi-, from Greek arkhi-, archi-.]
Variant of archi-.
1. chief; principal; of highest rank: archangel; archbishop; archduke.
2. eminent above all others of the same kind; extreme: archenemy; archfiend; archfool.
[ultimately from Greek arkhi-, from arkhein to rule]
1. a curved construction spanning an opening and usu. supporting weight from above or the sides.
2. a doorway or gateway having a curved head; archway.
3. any overhead curvature resembling an arch.
4. something bowed or curved: the arch of the foot.v.t.
5. to cover or span with an arch.
6. to form into an arch: a cat arching its back.v.i.
7. to form an arch: elms arching over the road.
[1250–1300; < Old French arche < Vulgar Latin *arca, feminine variant of Latin arcus arc]
1. coyly roguish or ironic.
2. crafty; sly.
[1545–55; independent use of arch-1]
a combining form used to create nouns that denote individuals or institutions directing or having authority over others of their class (archbishop; archdiocese; archpriest); also meaning “principal” (archenemy; archrival) or “prototypical” and thus exemplary or extreme (archconservative).
[Old English arce-, < Latin archi- < Greek; see archi-]
var. of archi- before a vowel: archangel.
a combining form meaning “chief, leader, ruler”: matriarch; monarch.
[< Greek -archos or -archēs, as comb. forms of árchos leader]
4. architect; architecture.
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