“Settlements built upon rivers reflect the sound change o > u before ng, common in Lancashire dialects. Riverine and estuarine alluvium shows traces of discarded consonants. Land fringing upland is subject to word-flood, adversely affecting ground-nesting birds. River byhts often accumulate twite and skylark.”
Quoted from Moor Glisk, ISBN 978-0-9572121-2-1.