Brown-Driver-Briggs' Hebrew DefinitionsBDB9933 שׁדר 1. (Ithpael) to struggle, strive Origin: a primitive root TWOT: 3021 Parts of Speech: Verb
אשׁתּדּוּר 'eshtaddûr esh-tad-dure' (Chaldee); from H7712 (in a bad sense); rebellionKJV Usage: sedition.