What is the meaning of Lappet?

A small decorative fold or flap, especially of lace or muslin, in a garment or headdress.

A wattle or flap-like structure on the face.

A head-dress made with lappets for lace pendants.

A lobe (division of an organ).

To decorate with, or as if with, lappets.

Source: wiktionary.org