Dictionary of Medieval Names
from European Sources

Shadrach m. Hebrew שַׁדְרַךְ, from an uncertain Babylonian or Chaldean source.

The name of a minor Old Testament character. Wycliffite Bible (1395): Sidrac.

England
Early Modern English
1583 Sidrack DEmar-vol2 p. 8
Cite as: S.L. Uckelman. "Shadrach". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2016, no. 4. http://dmnes.org/2016/4/name/Shadrach.