Origin of det.
From the Latin word dētur
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
detur (let there be given; give)
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.