GWYNVE (GWINVAI), a chapelry, in the parish of LLANGADOCK, lower division of the hundred of PERVETH, county of CARMARTHEN, SOUTH WALES, 5 miles (S. S. E.) from Llangadock, containing 845 inhabitants. The living is a perpetual curacy, in the archdeaconry of Carmarthen, and diocese of St. David's, endowed with £1000 royal bounty, and 4800 parliamentary grant, and in the patronage of the Vicar of Llangadock. This chapelry is situated in a valley in the western division of the Black Mountains, from which the Clydach and Sawdde Vechan streams descend, and, after uniting, join the Sawdde on the northern confines of the chapelry. It contains within its limits a seat of the same name, the property of L. Lewis, Esq. The average annual expenditure for the support of the poor amounts to £325. 11.