Your request was circumcisin which is probably a typo from circumcision.
circumcisin -
Traditional English :: circumcision
circumcisin - n. 1 the act or rite of circumcising or being circumcised. 2 (Circumcision) Eccl. the feast of the Circumcision of Christ, 1 Jan. [ME f. OF circoncision f. LL circumcisio - onis (as CIRCUMCISE)]