קוֹשְׁטְ, c. Ḳoshṭ (costum, κοστός), name of a fragrant root or shrub, putchuck. Ukts. III, 5; Nidd. 51ᵇ; Y. Ḥag. III, 79ᶜ כוש׳; Y. Erub. IX, end, 25ᵈ כּוֹשְׁתְּ; Sifré Deut. 107. Ker. 6ᵃ; Y. Yoma IV, 41ᶜ (one of the ingredients of frankincense). Ch. כָּשַׁרְתָּא.