perhaps from the same as ὄρος (through the idea of elevation); the sky; by extension, heaven (as the abode of God); by implication, happiness, power, eternity; specially, the Gospel (Christianity):--air, heaven(-ly), sky.
from another form of the base of ξέστης; timber (as fuel or material); by implication, a stick, club or tree or other wooden article or substance:--staff, stocks, tree, wood.