Wiktionary
ukelin
n. (context musical instrument English) A musical instrument resembling a ukelele and violin.
Wikipedia
Ukelin
The ukelin is a bowed psaltery with zither strings made popular in the 1920s. It is meant to be a combination of the violin and the Hawaiian ukulele. It lost popularity prior to the 1970s because the instrument was difficult to play and often returned to the manufacturer before it had been completely paid for.