Pertaining to the middle voice.
Located in the middle; in between.
Central.
A centre, midpoint.
The part between the beginning and the end.
The middle stump.
The central part of a human body; the waist.
The middle voice.
The most extreme; greatest, ultimate.
Situated at the most distant limit; farthest, outermost.
The greatest possible capability, extent, or quantity; maximum.