(skärf) noun plural scarfs
1. In carpentry, a lapped joint made as by notching two timbers at the ends, and bolting them together so as to form one continuous piece without increased thickness: also scarf joint.
2. The notched end of either of the timbers so cut.
3. A cut or incision in the blubber of a whale.
—v.t.
1. To unite with a scarf joint.
2. To cut a scarf in. [? <ON skarfr a notch in a timber]
TYPES OF SCARF JOINTS

(skärf) noun plural scarfs or scarves (skärvz)
1. A long and wide band, especially when worn about the head and neck; also, any sash.
2. A necktie or cravat.
3. A runner for a bureau or dresser.
4. An official sash, denoting rank.
5. A tippet or neckpiece.
—v.t.
1. To cover or decorate as with a scarf.
2. To use as a scarf; wrap loosely around one. [<AF escarpe, OF escharpe,? <escreppe a scrip²]

(skärf)
See SCART³.