Mid-spreca

According to the Old English Dictionary:

an;

mid-spreca

m. One who speaks on behalf of another :-- Paulus wæs midspreca and bewerigend ðære ealdan ǽ Paul was an advocate and defender of the old law, Homl. Th. i. 388, 32. [Cf. Icel. með-mæli the speaking a good word for one.] mid-spreca