"state of being solvent, ability to pay all one's just debts and claims," 1727, from solvent + abstract noun suffix -cy.
Entries linking to solvency
solvent adj.
1650s, "able to pay all one owes," from French solvent, from Latin solventem (nominative solvens), present participle of solvere "to loosen, release, accomplish, fulfill," from PIE *se-lu-, from reflexive pronoun *s(w)e- (see idiom) + root *leu- "to loosen, divide, cut apart." The chemical meaning "having the power of dissolving" is by 1680s.
-cy
abstract noun suffix of quality or rank, from Latin -cia, -tia, from Greek -kia, -tia, from abstract ending -ia (see -ia) + stem ending -c- or -t-. The native correspondents are -ship, -hood.