Postillate

v. t. [L. Lat. postillare, postillatum. See supra.] To explain by marginal notes; to postil. “Tracts of the period which belonged to George III., and in a few instances are postillated by his own hand.” Knight.

v. i. 1. To write postils or marginal notes.

2Sense 2. Hence, to preach by expounding Scripture, verse by verse, in regular order.