tussack (plural tussacks) Obsolete form of tussock. tussack m (uncountable) tussock 2017, Tinnean, Touche pas à mon espion: Espion contre agent secret...
WOTD – 13 December 2009 tussac, tussack (both obsolete) Uncertain. Likely from or related to tusk + -ock (diminutive suffix). Compare Middle High German...