The Tocharian A word taryāk
Word taryāk
Meaning thirty
See also Tocharian B: täryāka ‘thirty’
Proto-Indo-European: *trī-k̂omt(hₐ) ‘thirty’

Other words that might be of interest
okät ‘eight’, oktuk ‘eighty’, trit ‘third’, tre ‘three’, pänt ‘fifth’, päñ ‘five’