linguistic:voice_change
Etymology

The word "flood" comes from the Old English flōd, a word common to Germanic languages (compare German Flut, Dutch vloed from the same root as is seen in flow, float; also compare with Latin fluctus, flumen), meaning "a flowing of water, tide, an overflowing of land by water, a deluge, Noah's Flood; mass of water, river, sea, wave,". The Old English word flōd comes from the Proto-Germanic floduz (Old Frisian flod, Old Norse floð, Middle Dutch vloet, Dutch vloed, German Flut, and Gothic flodus derives from floduz).