Definition of throwst in English:

throwst

Pronunciation /θrəʊst/

verb

historical, rare
  • To process (silk) for use in textile manufacture by twisting silk filaments into raw silk, or by twisting together two or more single threads or yarns of silk to form silk thread or yarn.

Origin

Late 17th century; earliest use found in Willem Sewel (1653–1720), translator, lexicographer, and historian of Quakerism. Back-formation from throwster.