Where does “gab” come from?

Gab comes from Middle English gabben, from Old Norse gabba, from Proto-Germanic gabbaną, from Proto-Indo-European ghabh-.

gab (English): Idle chatter; The mouth or gob; One of the...

Definitions

gab traces back through two separate lines of ancestry.

Step	Language	Word	Meaning
1	English	Gabriel	—
2	Latin	Gabriel	—
3	Ancient Greek	Γαβριήλ	—
4	Hebrew	גבריאל	Gabriel, an archangel associated with carrying...
5	Hebrew	אֵל	a God; God, deity; god, God
6	Hebrew	שמואל	—
7	Hebrew	שְׁמוּאֵל	—

Step	Language	Word	Meaning
1	Middle English	gabben	to drink greedily
2	Old Norse	gabba	to mock, to make game of
3	Proto-Germanic	gabbaną	to mock, jest
4	Proto-Indo-European	ghabh-	to be split, be forked, gape; seize, take, hold,...