Meaning

noun light informal conversation for social occasions

verb talk profusely

originFrom Middle English gabben, from Old English gabban (“to scoff, mock, delude, jest”) and Old Norse gabba (“to mock, make sport of”); both from Proto-Germanic *gabbōną (“to mock, jest”), from Proto-Indo-European *gʰeh₁bʰ- (“to be split, be forked, gape”). Cognate with Scots gab (“to mock, prate”), North Frisian gabben (“to jest, sport”), Middle Dutch gabben (“to mock”), Middle Low German gabben…

Etymology from Wiktionary, CC BY-SA 3.0