From Middle English galpen, from Old English *galpian, *gealpian (“to gape, yawn, gulp”), suggested by derivative Old English gealpettan (“to gulp down, eat greedily, devour”), from Proto-Germanic *galpōną (“to gape, yawn, sound out, yap”), from Proto-Indo-European *gʰel- (“to call, cry out, shout, scream”). Cognate with North Frisian galpe (“to shout”), Saterland Frisian galpje (“to call, cry out, resound”), Low German galpen (“to bellow, roar, howl, bark”), Dutch galpen (“to yell, shout, howl”), dialectal Swedish galpa (“to screech, scream”), French japper (“to yelp, bark”). More at yelp.
galp (third-person singular simple present galps, present participle galping, simple past and past participle galped)
Borrowed from Arabic قَلْب (qalb). Cognate with Azerbaijani qəlp