Wiktionary
selly
a. (context UK dialectal Northern England Scotland English) rare; wonderful; admirable. adv. (context UK dialectal Northern England Scotland English) wonderfully. n. (context UK dialectal Northern England Scotland English) A marvel; wonder; something wonderful or rare.
Usage examples of "selly".
Mr Selly urged Paul, as they forked hay down from the upper level of the barn.
Mr Selly was standing gawping at Julius as though Julius was the very Devil incarnate.
Mrs Selly appeared to also gawp at Julius, her expression one of fright.
I headed to the Selly Oak outpost of the newly renamed University Hospital to see Aggie.