shilling vs solidus

shilling

noun
  • A coin formerly used in the United Kingdom, Ireland, Malta, Australia, New Zealand and many other Commonwealth countries worth twelve old pence, or one twentieth of a pound sterling. 

  • A currency in the United States, differing in value between states. 

  • The currency of Kenya, Somalia, Tanzania and Uganda. 

  • The Spanish real, formerly having the value of one eighth of a dollar. 

solidus

noun
  • Its successor Byzantine coins, from the eleventh century onward of progressively debased weight and purity. 

  • A Roman ~23k gold coin introduced by Diocletian in AD 301 and called by that name, but reissued at a slightly lower weight by Constantine I. 

  • The formal name of the oblique strikethrough overlay (as in A̷ and B̸) in Unicode. 

  • The weight of the Roman gold coin, 1/60 of a Roman pound under Diocletian or 1/72 lb. (about 4.5 grams) after Constantine. 

  • The line in a phase diagram marking the temperatures and pressures below which a given substance is a stable solid. 

  • A medieval French weight, 1/20 of the Carolingian pound. 

  • Synonym of slash ⟨/⟩, originally (UK) in its use as the shilling mark and now its formal designation by the ISO and Unicode. 

  • The division line between the numerator and the denominator of a fraction, whether horizontal or oblique. 

How often have the words shilling and solidus occurred in a corpus of books? (source: Google Ngram Viewer )