Csömbő (-)
(with) definite article: adecorative fringe(s), tassel(s), &c. dangling from any of the pipes, &c.
Literally: "bump" (also tassel / fringe at the end of sth.); Woollen tassel, dangling from the chanter; Used for deadening the semidrone.
Sárosi, Bálint: Die Volksmusikinstrumente Ungarns (Handbuch der europ. Volksmusikinstr. 1/1). Leipzig, s.a. [1967], p.87.
ws (➺ Dictionaries)