Bar-out meaning

As the mountains of Valencia and Catalonia effectually bar out the fertilizing moisture of the sea-winds, much of the province is a sheer wilderness, stony, ash-coloured, scarred with dry watercourses, and destitute of any vegetation except thin grass and heaths.

That would bar out for ever all risk of a conflict of clerical wills.

Xander led her through the crowd, out of the hidden rave and into the legitimate bar out front.