Originally, an explanatory note in the margin of the Bible, so called because written after the text; hence, a marginal note; a comment. [1913 Webster]
A short homily or commentary on a passage of Scripture; as, the first postils were composed by order of Charlemagne. [1913 Webster]
, v. t. Array
To write marginal or explanatory notes on; to gloss. Bacon. [1913 Webster]
, v. i.
To write postils, or marginal notes; to comment; to postillate. [1913 Webster]