dart (n.) Look up dart at Dictionary.com
early 14c., from Old French dart "throwing spear, arrow," from Proto-Germanic *darothuz cognates: Old English daroð, Old High German tart, Old Norse darraþr "dart"). Italian and Spanish dardo are said to be from Germanic by way of Old Provençal.
dart (v.) Look up dart at Dictionary.com
late 14c., "to pierce with a dart," from dart (n.). Meaning "to move like a dart" is attested from 1610s. Related: Darted; darter; darting.