caul in French

(historical) A style of close-fitting circular cap worn by women in the sixteenth century and later, often made of linen. [from 14th c.]

The thin membrane which covers the lower intestines; the omentum. [from 14th c.]

The amnion which encloses the foetus before birth, especially that part of it which sometimes shrouds a baby’s head at birth (traditionally considered to be good luck). [from 16th c.]