2 Words to use with middlemost

Shady and covered the way through the lofty middlemost alley, Which upon steps that were made of unhewn blocks you ascended.

In consequence of the multitude of mediocre values, we always find that on either side of the middlemost ordinate Cc, which is the median value and may be accepted as the average, there is a much less rapid change of height than elsewhere.

2 Words to use with  middlemost