Recension is the practice of editing or revising a text based on critical analysis. When referring to manuscripts, this may be a revision by another author. The term is derived from Latin recensio.

What is a recension letter?

1 : a critical revision of a text. 2 : a text established by critical revision.

What recission means?

Definitions of recission. (law) the act of rescinding; the cancellation of a contract and the return of the parties to the positions they would have had if the contract had not been made.