דרע (according to Thes connected with Aramaic דְּרָע, אֶדְרָע arm, Hebrew זְרוֺעַ, whence following in sense strong, of fortified city; this, however, is dubious)

The Brown-Driver-Briggs Hebrew and English Lexicon
License: Public domain document; formatting developed for use in by Eliran Wong.
Source: provided by Tim Morton, the developer of Bible Analyzer