YN-DRE-ISA (YN-Y-DRE-ISAF), a township, in that part of the parish of LLANBADARNVAWR which is in the lower division of the hundred of GENEU'R-GLYN, union of ABERYSTWITH, county of CARDIGAN, SOUTH WALES, 1 mile (E. 8. E.) from Aberystwith; containing 352 inhabitants. The parochial church of Llanbadarn-Vawr and the greater part of the adjacent village are situated in this township, a small part of which is included within the new limits of the contributory borough of Aberystwith. It is bounded on the north-west by the river Rheidiol. Here is a day school, consisting of 40 children, and supported partly by an endowment of X--7 per annum, and partly by payments from the parents; and two Sunday schools, one connected with the Established Church, and the other appertaining to Independents, contain about 280 males and females, and are conducted gratuitously, books being furnished by means of collections.