He stood on the sidewalk, swaddled in a blanket.
Origin of swaddle
- Middle English swadlen probably back-formation from swadling (band) swaddling (cloth), or swathelbonde both from swathelen probably frequentative of Old English swathian to swathe
From American Heritage Dictionary of the English Language, 5th Edition
- swathe (“to wrap with fabric") +"Ž -le (frequentative), the word then underwent th-stopping (its voiced th became a d).