Me"di*ate*ly (?), adv.
In a mediate manner; by a secondary cause or agent; not directly or primarily; by means; -- opposed to immediately.
God worketh all things amongst us mediately.
Sir W. Raleigh.
The king grants a manor to A, and A grants a portion of it to B. In this case. B holds his lands immediately of A, but mediately of the king.
© Webster 1913.