vallidomnorth.dial. [Irreg. f.vally value n.] The value or worth of a thing. 1790Grose Prov.Gloss., Vallidom, the value of.1828–in north.dial. glossaries (Yks., Durh., Cumbld., Lancs., Linc.).1887A. E. Barr Border Shepherdess iv. 57 He knew the vallidom of everything he possessed to a halfpenny.