Origin of dewlapMiddle English dewlappe: see dew and lap
- A fold of loose skin hanging from the neck of certain animals.
- A pendulous part similar to this, such as the wattle of a bird.
- A fold of loose skin hanging from the neck of a person.
Origin of dewlapMiddle English dewlappe dew of unknown meaning ( akin to Danish and Norwegian dog- ) ( in Danish doglæb ) (Norwegian doglæp dewlap ) lappe fold ; see lap 2.
Dew, of unknown meaning and origin, + Old English læppa (“a loose hanging piece”)