1550s, yeaghe "a light, fast-sailing ship," from Norwegian jaght or early Dutch jaght, both from Middle Low German jacht, shortened form of jachtschip "fast pirate ship," literally "ship for chasing," from jacht "chase," from jagen "to chase, hunt," from Old High German jagon, from Proto-Germanic *yago-, from PIE root *yek- (2) "to hunt" (cognates: Hittite ekt- "hunting net"). Related: Yachting; yachtsman.