Expression describing a false or insincere display of sorrow…

Expression describing a false or insincere display of sorrow, such as weeping to gain sympathy. It comes from an ancient belief, repeated by medieval writers including the travel book of Sir John Mandeville, that a large Nile reptile shed water from its eyes while devouring its victims, mourning hypocritically. Shakespeare used the image in Othello. Scientists have since observed that these animals do secrete fluid from their eyes while feeding.

The answer in 14 letters