1) The passage between the pews in a church.
The OED says ‘Still used in the north. In the south corruptly replaced by aisle’: 1535 To bee beryed ... in the myddeth allaye before the picture of the crosse, Halifax
1540 in mide alley nyght [sic] unto the quere dower, Halifax
1576 glasse wyndows about the alles of the Mynster, York.