Where does “skitan” come from?

skitan (Finnish) comes from Finnish skitta, from Finnish kitara, from German Gitarre, from Spanish guitarra, from Old Spanish guitarra, from Arabic قِيثَارَة, from Latin cithara, from Ancient Greek κιθάρα — lyre; the ribs of the horse; ivy.

skitan (Finnish): Genitive singular form of skitta; Accusative...