From ee (“eye”) + -some. <span class="searchmatch">eesome</span> (comparative more <span class="searchmatch">eesome</span>, superlative most <span class="searchmatch">eesome</span>) (obsolete) Pleasing to the eye; attractive. 1823, John Gibson Lockhart...
dronesome drunkensome dubersome duelsome easesome ectosome editosome eerisome <span class="searchmatch">eesome</span> eisosome ejectosome endosome endsome enhanceosome envysome epididymosome...
Mannering: […] and he never took his ee aff them, or said another word […] <span class="searchmatch">eesome</span> Bill Griffiths, editor (2004), “ee”, in A Dictionary of North East Dialect...