Defn: To write postils, or marginal notes; to comment; to postillate.
Postiling and allegorizing on Scripture. J. H. Newman.

POSTILER
Pos"til*er, n. Etym: [Written also postiller.]

Defn: One who writers marginal notes; one who illustrates the text of a book by notes in the margin. Sir T. Browne.

POSTILION
Pos*til"ion, n. Etym: [F. postillon, It. postiglione, fr. posta post.
See Post a postman.]

Defn: One who rides and guides the first pair of horses of a coach or post chaise; also, one who rides one of the horses when one pair only is used. [Written also postillion.]

POSTILLATE
Pos"til*late, v. t. Etym: [LL. postillatus, p. p. of postillare.]

Defn: To explain by marginal notes; to postil.
Tracts . . . postillated by his own hand. C. Knight.

POSTILLATE
Pos"til*late, v. i.

1. To write postils; to comment.

2. To preach by expounding Scripture verse by verse, in regular order.