 According to writers Dolch and Greule, the name unites the ending "—bach" (“brook”) with the prefix "Gago", believed to be an early settler's name.The pertinent writings bring to light no vanished villages within Unterjeckenbach's limits, unless the village of Oberjeckenbach is counted.This was evacuated after Adolf Hitler came to power in 1933, along with 14 other villages in the region, to make way for the Baumholder troop drilling ground.