sol

shoe, boot, footwear

From PIE *se/ol-o- "place, habitation, human settlement".

Old High German sal "habitation, room",
Old Norse salr "hall, room, house",
Latin solea "sandal, bottom of a shoe; a flatfish" from solum "bottom, ground, foundation, lowest point of a thing",
Vulgar Latin *sola,
Old French sole,
Lithuanian sala "island, field surrounded by meadows, village",
Old Church Slavonic selo "field, courtyard, village",
Polish siolo,
Russian selo "village",
English, "bottom of a shoe or boot" (from 14th century).