√Zwr is a root of [Arabic words for] inclination and deviation. Zūr is "falsehood," because it deviates from the way of truth. Zawwara means "to conjure something in the mind," by way of shaping it and changing its tack to make it more agreeable to the hearer. When an idol is called zūr [as in the verse by al-Aghlab al-‘Ijlī, meter: rajaz], it is based soundly on this meaning [of "fabrication"]:
They came with their zūrs, and we came with al-Aṣamm,
[our shaykh who is like a lion of Iram's remnant.]
Zawar is "inclination." Izwarra means "to incline away" from something. A similar idea is expressed by [active participle] zā’ir "visitor," because when someone visits you they have inclined away from other people. The chieftain who commands a group is called al-zuwayr because his followers turn away from all others in deference to him only, as in the verse (meter: ṭawīl):
At the hands of men with no leadership among them,
the tyrannical zuwayr is driven to his death.
When they say, "There is no zawr to this man," they mean he lacks any judgment worth seeking out.
Generosity shown to visitors is tazwīr. A zawr is a visiting group of any number of men or women, and for a single visitor the same word is used. A poet said (meter: rajaz):
There's a sway in their walk at al-Khubayb
that's like the swaying gait of visiting maidens (al-fatayātu 'z-zawru)
When a strong and hardy [camel] is called ziwarr, it is derived anomalously from zawr which is the upper part of its chest.
From Analogical Templates of Language by Ibn Fāris