cupping
‘treatment in which evacuated glass cups are applied to intact or scarified skin in order to draw blood toward or through the surface.’
Lexical development traced from the Tamil root:
O.E. cuppe < O.Nort. copp < La.Lat. cuppa ‘cup’ < Lat. cupa ‘tub, cask, tun, barrel’ < kuhp < kup- < Tamil kappu