TACH-LLEUAN (TACH-LEIAN), a hamlet, with Rhiwlas, in that part of the parish of Llandilo-Vawr, which is in the lower division of the hundred of CAYO, county of Carmarthen, SOUTH WALES, l miles,.(N.) from Llandilo-Vawr; containing 197 inhabitants. The name implies "a spreading to tbe westward," being descriptive of the situation of this hamlet in the parish.