Something like "place where something starts" or maybe "place of origination"
The connection here isn't the strongest. While there is a fairly strong sense of 'location' in many words with this root, it isn't universal and the 'beginning' part is more speculative than the 'location' aspect.
vooan (truth), in sense everything can be thought of as originating in truth.
ovoars (center), things often start in the center and expand outward