noun

1. a material consisting of animal skin prepared for use by removing the hair and tanning
2. any of various articles or parts made of this material
3. the flap of a dog's ear

Etymology: ME lether < OE lether-, akin to Ger leder, ON lethr, MHG leder < Gmc *lethra < ? or akin ? to Celt base as in OIr lethar, Welsh lledr

adjective

1. of or made of leather

2. Etymology: < the leather attire often associated with sadomasochism

   of or having to do with sadomasochists, esp. homosexual sadomasochists

transitive verb

1. to cover or furnish with leather
2. Informal to whip or thrash with or as with a leather strap