English
lappet
From lap + -et.
A compound of lap + -et
Proto-Germanic *lappô ‘cloth’
Proto-West Germanic *lappō
Old English læppa ‘skirt or flap of a garment’
Middle English lappe
English lap
Today it means
noun A small decorative fold or flap, especially of lace or muslin, in a garment or headdress.
Language periods are conventional ranges, not dates for this word.
Etymograph / lappet