small European herring, 1590s, variant of sprot (c. 1300), from Old English sprott "a small herring," according to Klein related to Dutch sprot and probably connected to sprout (v.).
Entries linking to sprat
sprout v.
Old English -sprutan (in asprutan "to sprout"), from Proto-Germanic *sprut- (source also of Old Saxon sprutan, Old Frisian spruta, Middle Dutch spruten, Old High German spriozan, German sprießen "to sprout"), from PIE *spreud-, extended form of root *sper- "to strew" (perhaps also the source of Old English spreawlian "to sprawl," sprædan "to spread," spreot "pole;" Armenian sprem "scatter;" Old Lithuanian sprainas "staring, opening wide one's eyes;" Lettish spriežu "I span, I measure"). Related: Sprouted; sprouting.