tus·sah 
(tŭsə, tŭsô′) also tus·sore (tŭsôr′)
(tŭsə, tŭsô′) also tus·sore (tŭsôr′)n.
1. An Asian silkworm, the larva of a large saturniid moth (Antheraea paphia), that produces a coarse brownish or yellowish silk.
2. The silk produced by this worm or a fabric woven from it.
[Hindi tasar, from Sanskrit tasaram, shuttle (probably from the shape of its cocoon); see ten- in the Appendix of Indo-European roots.]