1) ‘Ratton’ was the regional word for a rat.
It derives from Old French ratoun and its use dates from c.1300. The animal was considered a pest which needed to be controlled: 1510 like wise vestimentes ... are gretly fawtie, some worne full of holles some ettyn w[ith] rattons, York
1576 a ratton fell, Scriven. Ratton bread was a poisonous paste used for that purpose: 1395-6 It. pro sperstane et ratonbrede empt. ijs ijd, Whitby Abbey
1532 Ser Wylliam Gascoignes servaunte had lad raton brede in the house, Wombwell
1679 searching his pockets they found ratten bread and he confessed he intended to poyson himself, Northowram. In minor Yorkshire place-names the word was characteristically linked with water-courses, for example Ratten Clough, Ratten Gill, Ratten Gutter and Ratton Syke.