Correct spelling for the English word "shoading or shoding" is [ʃˈə͡ʊdɪŋ ɔː ʃˈə͡ʊdɪŋ], [ʃˈəʊdɪŋ ɔː ʃˈəʊdɪŋ], [ʃ_ˈəʊ_d_ɪ_ŋ ɔː ʃ_ˈəʊ_d_ɪ_ŋ] (IPA phonetic alphabet).
Searching for fragments of ore in the gravel of a stream or valley with the view of tracing the vein from which they have been shed or dispersed.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.