For Cobos-Arco there are 2 on Yasni with different names.
Among the most common last names on Yasni Cobos-Arco is on position 4525.
There is no meaning available yet for "Cobos".
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It comes from the root "ARC" hence ARCO. Applied to Ray Arco, it simply states the Arc (bow) with a Ray-arrow. It also relates to the French "Arc-en-Ciel" (an Arc in the sky) or rainbow.
(Sent from: LIPA)