noun
A small decorative fold or flap, especially of lace or muslin, in a garment or headdress.
(zoology) A wattle or flap-like structure on the face.
A head-dress made with lappets for lace pendants.
(obsolete, anatomy) A lobe (division of an organ).
verb
(transitive) To decorate with, or as if with, lappets.