CYLCH-BYCHAN, a hamlet, in the parish of ST-DAVID'S, hundred of DEWISLAND, county of PEMBROKE, SOUTH WALES, 1i mile (E.)
from St. David's, containing 359 inhabitants. It forms one of the four cylchs, or hamlets, into which the parish is
divided, the adjunct signifying the smaller hamlet, as compared with Cylch Mawr, or the larger.