Merriam-Webster Collegiate Dictionary - sole

 I. noun  Etymology: Middle English, from Anglo-French, from Latin ~a sandal, a flatfish  Date: 13th century any of various flatfishes (family Soleidae) having a small mouth, small or rudimentary fins, and small eyes placed close together and including important food fishes (as the European Dover ~); also any of various mostly market flatfishes (as lemon ~) of other families (as Pleuronectidae)  II. noun  Etymology: Middle English, from Anglo-French ~, soele, from Latin ~a sandal; akin to Latin solum base, ground, soil  Date: 14th century  1.  a. the undersurface of a foot  b. the part of an item of footwear on which the ~ rests and upon which the wearer treads  2. the usually flat or flattened bottom or lower part of something or the base on which something rests  • ~d adjective  III. transitive verb  (~d; soling)  Date: circa 1570  1. to furnish with a ~ ~ a shoe  2. to place the ~ of (a golf club) on the ground  IV. adjective  Etymology: Middle English, alone, from Anglo-French sul, soul, seul, from Latin solus  Date: 14th century  1. not married — used chiefly of women  2. archaic having no companion ; solitary  3.  a. having no sharer  b. being the only one she was her mother's ~ support  4. functioning independently and without assistance or interference let conscience be the ~ judge  5. belonging exclusively or otherwise limited to one usually specified individual, unit, or group  • ~ness noun