Merovingian dynasty me·ro·vin·giandynasty uncommon noun 1. a Frankish dynasty founded by Clovis I that reigned in Gaul and Germany from about 500 to 750 SynonymsMerovingianMerovingian dynasty Related words Broader terms dynasty Part of Merovingian WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.