Survey of English Place-Names

Historical Forms

• Dallerlyne 1598 Border

• the Dallerline 1603 Gilsland

• Dollerline 1618 Naworth

Etymology

The first element is the Welsh  dôl , which meant originally 'the loop of a river,' then 'the land within the loop,' so that its modern meaning is usually 'river-side meadow,' found already in a poem (probably of the 10th cent.) translated by K. Jackson, Celtic Nature Poetry , pp. 53, 76. The second element is the Welsh  preposition ar , 'on,' as in Pont-ar-dulais (Glamorgan). The third element is the name of the R. Lyne supra 21.