Ragamuffin

Originally, a disreputable person and dates from the mid-14th century, although the word appears in the medieval poem Piers Plowman in 1393 and describes a demon. By the late 16th century its meaning had softened to its current one of a ragged, scruffy, dishevelled person, usually a street urchin. The OED says its etymology stems from rag or ragged with the purely arbitrary and fanciful ending ‘muffin’ that in those days meant a poor little thing or creature, long before it came to mean a small cake in the early 1700s.