Crudle \Cru"dle\ (-d'l), v. i. See {Cruddle}. [1913 Webster]
Curdle \Cur"dle\ (k[^u]r"d'l), v. i. [From {Curd}.] [Sometimes written {crudle} and {cruddle}.] 1. To change into curd; to coagulate; as, rennet causes milk to curdle. --Thomson. [1913 Webster] 2. To thicken; to congeal. [1913 Webster] Then Mary could feel her heart's blood curdle cold. --Southey. [1913 Webster]