We don't have synonyms for skilling yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are killing, swirling and shilling.
(n) :
(historical) A Scandinavian monetary unit and coin up to the 19th century. (A subdivision of the Swedish riksdaler, the Danish and Norwegian rigsdaler and speciedaler).
(n) :
(historical) A Scandinavian monetary unit and coin up to the 19th century. (A subdivision of the Swedish riksdaler, the Danish and Norwegian rigsdaler and speciedaler).